Purchasespec5axis030408(6).doc

PURCHASE SPECIFICATION

OO-ALC, HILL AFB, UTAH 84056

309 COMMODITIES MAINTENANCE GROUP

PROJECT NUMBER: 587

DATE WRITTEN: 03/04/08

WRITTEN BY: Preston Miller 5-Axis Vertical Grinding Machines

1. Scope.

This purchase specification covers the general design and performance requirements for a 5 axis universal milling machine with a vertical spindle with equipment and accessories as described herein.

2. Equipment and tooling for additional machines.

This purchase specification was written to describe the requirements for a single machine. If more than one machine is requested by the attached solicitation, all of the requirements specified herein shall be increased accordingly.

3.0 Applicable documents.

The machine described in this Purchase Specification shall be manufactured in accordance with these documents. The latest dated document shall be the one applicable to this Purchase Specification.

3.1 Government Publications. The following Government documents, drawings, and publications form a part of this Purchase Specification to the extent specified herein:

STANDARDS – FEDERAL

FED-STD-H28

Screw Tread Standards for Federal Service (1994)

U.S DEPARTMENT OF LABOR, OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA)

OSHA 2206

General Industry, OSHA Safety and Health Standards (29 CFR 1910), 1994 EDITION

3.2 Other Publications. The following documents form a part of this Purchase Specification to the extent specified herein:

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI/ASME B5.1M

T-Slots, their Bolts, Nuts, and Tongues, Revision of

ANSI B5.1-1975 R (1998), (1985 edition)

ASME B5.10

Machine Tapers.

ASME B5.18

Spindle Noses and Tool Shanks for Milling Machines.

ASME B5.40

Spindle Noses and Tool Shanks for Horizontal Boring Machines and Machining Centers.

ANSI/ASME B5.50

V-Flange Tool Shanks for Machining Centers with

Automatic Tool Changers, (1994 edition)

ANSI B5.51M

Preferred SI Units for Machine Tools, (1979 edition)

ASME B5.54-92

Data specification for the properties of machine tool performance tests

VDI/DGQ 34441

Machine tool accuracy

JIS B 6336-1986

Machine tool accuracy

ISO 230-2

Determination of accuracy and repeatability of positioning numerically controlled axes

AMT B11.8

Safety Requirements for Construction Care and Use of

Drilling Milling and Boring Machines.

ELECTRICAL STANDARDS

NFPA 70

Specification for Electrical system installation.

NEMA ICS 6

Enclosures for Industrial Controls and Systems. (1993 edition)

NEMA MG 1

Motors and Generators. (1998 edition)

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 79

Electrical Standard for Industrial Machinery. (2007 edition)

LOCAL INSTRUCTIONS

Hill AFB Instruction 91-302 Control of Hazardous Energy (Lockout/Tagout)

NATIONAL FLUID POWER ASSOCIATION

NFPA T2.24.1 R1

Hydraulic Fluid Power - Systems Standards for Stationary

Industrial Machinery Supplement to ISO 4413: 1998-Hydraulic Fluid Power-General Rules Relating to Systems to be Used in Conjunction with ISO 4413: 1998

NFPA T2.25.1 R1

Pneumatic Fluid Power - Systems Standard for Industrial

Machinery (NFPA/T2.25.1M-1986) First Edition (1987 edition).

3.3 Order of Precedence. In the event of a conflict between the text of this Purchase Specification and the references cited herein, the text of this Purchase Specification shall take precedence. Nothing in this Purchase Specification shall supersede applicable laws and regulations unless a specific exemption has been obtained.

4.0 Design.

The machine shall be new and one of the manufacturer's current production models. A current production model is defined as the manufacturer's current product, which on the date this solicitation is issued has been designed, engineered, sold or is being offered for sale through advertisements or manufacturer's published catalogs or brochures. Products such as a prototype unit, pre-production model or an experimental unit do not qualify as meeting the requirements of this Purchase Specification. The machine shall include all components parts and features necessary to meet the alignment and performance requirements specified herein.

4.1 Use of Americanized English.

Wording on all components and sub-components such as electrical motors, diagrams, hydraulic components, coolant components, safety and informational charts/plates shall be written in Americanized English. All installation diagrams, operator/users manuals, brochures and any other data supplied, as part of this Purchase Specification shall also be written in Americanized English.

4.2 Safety and health requirements.

Guarding

“One or more methods of machine guarding shall be provided to protect the operator and other employees in the machine guarding area from hazards such as those created by point of operation, ingoing nip points, rotating parts, flying chips and sparks. Examples of guarding methods are—barrier guards, two-hand tripping devices, electronic safety devices, etc.” OSHA 1910

Guards shall be affixed to the machine where possible and secured elsewhere if for any reason attachment to the machine is not possible. The guard shall be such that it does not offer an accident hazard in itself.”

Guards shall be provided to cover all belts, gears, electric motors and any other mechanical moving parts. Safety interlocks, over-travel limit stops and warning devices shall protect the machine, controls and operator from damage.

Electrical Hazards Shockproof controls for protecting the operator from mechanical and electrical hazards shall be provided. Safety interlocks, over-travel limit stops and warning devices shall protect the machine and controls from damage by over travel or overload of working units. The machine shall comply with OSHA 2206 standards.

High pressure equipment i.e.: air and hydraulic will have guarding and secure lines.

The machine shall not exceed 84 dbA maximum noise level.

4.2.1 Mercury Prohibition.

The use of mercury, mercury compounds or mercury based instruments on or in the machine is prohibited.

4.2.2 Asbestos Prohibition.

The use of asbestos and materials containing asbestos on or in the machine is prohibited.

4.3 Lubrication.

All mechanisms requiring lubrication including gears, slide ways, and bearings (except sealed-for-life type) shall be lubricated automatically by pressure, flood, or mist system, or a combination of these systems. Recirculated lubricating oil shall be filtered by a cleanable or replaceable type filters. Reservoirs shall be designed to prevent transferring heat to other machine components and shall be fitted with oil level sight gages. The contractor shall provide all Material Safety Data Sheets (MSDS) for all oils or lubricants required the machine operation.

4.4 Construction.

The machine shall be constructed so that when it is installed and connected to power it shall be ready for operation. The machine shall be constructed of parts, which are without defects and free of repair. The structure shall be capable of withstanding all forces encountered during operation of the machine to its maximum rating and capacity without permanent distortion. All parts subject to wear breakage or distortion shall be easily accessible for adjustment, replacement and repair.

4.4.1 Painting.

All surfaces to be painted shall be cleaned of all foreign matter prior to paint application. The machine shall be painted in accordance with the manufacturers standard commercial practice.

4.4.2 Gears.

All metal gears shall be machined and heat-treated by a process that will impart the hardness, surface finish, and rigidity that will enable the gear train to transmit full-rated torque of the drive motor without gear damage failure or permanent distortion. All gears shall be manufactured to AGMA standards and they shall be manufactured to provide for interchangeability and parts replacement.

4.4.3 Hydraulic system.

The hydraulic system when supplied shall be complete with all necessary pumps, reservoirs, replaceable filters, valves, piping, motors, pressure controls, heat exchangers, and any other components required to make the system completely functional. The noise level of the hydraulic system shall not exceed 84 dbA.

4.4.4 Electrical power supply and electrical equipment.

All electrical equipment for the machine shall conform to the applicable requirements of NFPA Standards. The machine shall draw all of its electrical power from a single circuit having a fused safety disconnect switch. The machine's electrical system shall be wired for 480 VAC 3 phase 60 Hz.

The machine's electrical system shall withstand line voltage fluctuation of ( 10% with no damage to the machine or its related components. If DC or reduced voltage AC is required or specified for any part of the machine operation the necessary conversion or transformation equipment shall be furnished with the machine. The electrical system shall be of solid state design and shall be suitable for connecting the size grounding conductor specified in NFPA standards for the disconnect fuse rating.

5.0 Components.

5.1 Machine Exterior

Full Enclosure for flood coolant and operator protection.

Enclosure must provide direct access above machine table for part loading with overhead bridge crane.

Spin Windows for operator vision into machine tool.

Base constructed of advanced polymer (composite concrete, mineral casting, etc.) or cast iron.

Dampening feet for machine foot placement.

Operator must have line of sight view from machine controller to cutting tool.

5.2 Machine Interior

Machine will have chip augers or chip conveyor system.

Machine will have an automatic wash down system for chip evacuation.

Machine will be capable of removing all chips automatically.

The machine will have a table weight capacity of 750 lbs or more

The machine will have a cutting envelope of 33” X 27.5” X 19.5”.

The machine will have a fully programmable and interfaced swiveling 4th axis.

The machine will have a fully programmable and interfaced rotary 5th axis.

The 4th axis will have positioning capability between the angles of +30˚/-110˚.

The 5th axis will be capable of 50 rpm continuously.

The machine will be capable of wet grinding with water emulsion cutting fluid.

The machine will be equipped with a mist collection system.

5.3 Spindle

Spindle will be capable of 20,000 rpm minimum.

Spindle rpm will not exceed 30,000 rpm.

The spindle must be offered as a standard option for the machine. It will not be prototype, one of a kind, retrofit, or a deviation from the normal catalog options.

There will be a spindle available for replacement, in the event of failure, within 7 days time.

The spindle will be capable of operating at full rpm for a 100% duty cycle.

The spindle will be capable of holding HSK A 63, HSK E50, CAT 40, or BT40 tooling.

The spindle will have load monitors that shut down the machine operation if exceeded. The points of shut down must be programmable by machine tool programmer.

The spindle will be capable of spindle orientation.

The spindle will be capable of utilizing a grinding wheel.

5.4 Controller

The machine must have a Fanuc 30i/31i/32i series or Heidenhein Millplus IT, Heidenhein iTNC 530 controller, or Okuma control system with THINC.

The machine must have full part probing and tool setting, fully programmable through the machine control.

The part probe will be Renishaw brand.

The part probe will have radio transmission system.

The tool setter will be contact type or non-contact type.

The machine will have a hand held pendant for controlling operation of machine tool.

The machine will be capable of Ethernet connection.

The machine will be capable of full ISO programming.

The machine will be capable of user defined macros.

The control will have rotation, scaling, and mirror imaging capability.

The machine will have helical interpolation capability.

The control will have a 15” color display.

The control will be capable of nano smoothing.

The machine will have 8MB of part program storage.

The machine will have three lights indicating machine is running, machine is stopped, machine has faulted.

The machine will have interlocked doors during automatic cycles.

5.5 Machine travels

The machine will be capable of 1770 ipm minimum in all linear axis during rapid travel movements.

The machine will be capable of 775 ipm minimum in all linear axis during feed rated movements while maintaining positioning and repeatability accuracies.

The machine will have a 3 axis positioning tolerance of .00031” or better in X, Y, and Z axis (3 axis). The machine will have a single axis positioning tolerance of .00008” or better in X, Y, and Z axis. This will be according to VDI/DGQ 34441, ASME B5.59, JIS B 6336-1986, or ISO 230-2.

The machine will use digital AC servos or digital linear motors.

X, Y, and Z travels will have direct measurement on all linear axis using glass scale feedback.

All scales will be pressurized preventing fine particulates from entering.

The machine will have linear guideways or better on all linear machine travels.

All linear guideways supplied on the machine will be of the roller bearing type.

All drive systems and guideways will be fully covered.

All drives and guideways will be outside or above working envelope.

All guideways and travels will be automatically lubricated.

5.6 Foundation

The machine will not require any special foundations greater than 8” thick reinforced concrete.

The machine will not be permanently secured to the floor/foundation.

5.7 Tool Changer

The machine will have automatic tool changing capability during cycle.

The machine will have 30 tool pockets minimum in the automatic tool changer.

The machine will have the tool changing mechanism outside of the work envelope when not changing tools.

The machine will be capable of holding tools larger than normal if the adjacent tool pockets remain empty.

The machine will be capable of loading tools manually into the spindle nose.

The tool changer will be capable of storing the part probe, utilizing the automatic tool changer.

The tool changer will be capable of storing 4.5” diameter tools.

The tool changer will be capable of storing 11” long tools.

5.8 Coolant system

The machine must have programmable on/off of coolant through the machine tool control.

The machine will have flood coolant available at the spindle nose.

The machine will have a gravity bed filtration system capable of removing grinding swarf from metal working fluid.

The gravity bed filtration system will be fully integrated into the machine tool so that all metal working fluids are delivered to the filtration system and back to the machine tool automatically.

The gravity bed filtration system must be field maintainable.

The gravity bed filtration system must contain cleanouts on the main reservoir for easier metal working fluid change.

The main reservoir of the coolant system must have a fluid level sensor that will alarm machine operator of low coolant condition.

The gravity bed filtration system must have a tramp oil skimmer.

5.9 Tooling

Grinding Arbors will be provided for the following wheel shapes, tool lengths, and rpm:

1. 3.5” X .500” X .500”, 10” long, 15,000 rpm.

2. 4” X .750” X 1.000”, 10” long, 15,000 rpm.

3. 1.300” X .375” X 1.000” recess 1 side .900” X .300”, 10” long, 20,000 rpm

4. 3” X .375” X .375”, 10” long, 15,000 rpm.

The following tool holders will be provided:

1. Collet holders for .375” diameter tool, 30,000 rpm

2. Collet holder for .250” diameter tool, 30,000 rpm

3. Collet holder for .750” diameter tool, 15,000 rpm

6.0 Plates.

All markings on the plates shall be permanent and legible on a contrasting non-glare background.

6.1 Lubrication chart or plate.

A Lubrication chart or plate shall be permanently and securely attached to the machine. The following information shall be furnished on the chart or plate.

Points of application

Service interval

Type and viscosity of lubricant

6.2 Nameplate.

A Corrosion-resistant nameplate shall be securely attached to the machine.

The nameplate shall contain the information listed below:

Noun

Manufacturer’s name

Manufacturer’s serial number

Manufacturer’s model number

Main drive motor horsepower

Power input (volts total amperage phases frequency)

Contract number or order number

Date of manufacture (day month and year)

6.3 Caution Plate.

The manufacturer shall furnish a corrosion-resistant plate securely attached to the machine in a visible location with all-important cautions to be observed by the operator. The plate shall be permanently marked. If more than one plate is required to alert the operator and/or maintenance personnel in one or more areas caution plates shall be furnished.

7.0 Sizes and capacities.

Sizes and capacities are identified in section 5.

NOTE: Requirements are not less than those shown. Where a range is shown the required performance is from the stated minimum or less to the stated maximum or greater.

8.0 Equipment.

The following equipment and accessories shall be furnished for each machine.

a. One set of wrenches operating and repair tools that are normally furnished by the manufacturer.

A work light strategically located (without interfering with machine operation) to illuminate the work area. It shall be provided with an individual on/off control switch and protective shields.

9.0 Requirements of the proposal.

Offerors shall submit (in duplicate) as part of their proposal brochures, photographs, illustrations, drawings, and narratives which clearly show that the design, construction, capacities, and operation of the equipment being offered will meet all of the requirements set forth in this Purchase Specification. Literature displaying more than one model or size machine shall be clearly marked to indicate the model or size being offered.

Proposals shall include a response to each numbered paragraph of this Purchase Specification indicating compliance or non-compliance with the paragraph's particular requirements. Each paragraph shall be numbered using the Purchase Specification paragraph numbers. Response to each paragraph shall state “exceeds requirements”, “will comply” or “exception taken”. Where the proposal exceeds requirements or exceptions are taken, bid submittals shall provide specific information so the impact of the over-compliance or exception can be evaluated.

All narratives shall be in Americanized English and all sizes and capacities of the range being offered shall be stated in the inch system.

Offers, which do not include sufficient information to permit a complete compliance review by Air Force personnel, shall be rejected.

10.0 Requirements after the award of the contract.

NOTE - Engineering and technical support for installation requirements shall be furnished by the 309th Commodities Maintenance Group Manager. The support office at Hill AFB may be contacted at:

309 CMXG COMMODITIES MAINTENANCE GROUP MANAGER

5760 Southgate Avenue, Bldg 507 Hill AFB, UT 84056-5228

Name: Preston Miller Phone: (801) 430-4324 Or

Name: Kirt Ehlers

Phone: (801) 940-7910 Work hours: 7:00 AM to 3:30 PM MST (Monday thru Friday)

10.1 The contractor shall provide a set of machine installation drawings (Three views for the machine being supplied) to the Group Manager at least 30 days prior to the scheduled delivery of the machine.

Drawings are to be submitted through the Contract Administrator to the Group Manager.

The drawings shall include all peripheral equipment and utility hook-ups for the equipment to show what it will look like when it is installed.

The drawings shall be reviewed by Air Force personnel to determine the facility requirements and to finalize the installation site plans.

Condition of the existing concrete floor is as follows Floor thickness: 8 inches thick and bar reinforced concrete on 12 inch centers top and bottom.

Overall machine footprint dimensions (maximum allowable including all machine accessories)

255” wide and 200” long and 155” high

The contractor shall ensure that the machine and all related accessories being offered shall not exceed the facility site restrictions as indicated above.

Prior to initiation of the site preparation project the contractor shall coordinate with the Group Manager to obtain final pad site location and approval of foundation design and structure excavation plans and general work procedures.

10.2 The Group Manager’s phone number is in paragraph 10.0 above and the Contract Administrator’s phone number will be provided after award of contract. They shall be furnished an estimated delivery date for the machine at least 30 days prior to the scheduled delivery of the machine.

10.3 The contractor shall ship, off-load, install and test the machine at Hill AFB, Utah.

The contractor shall instruct the carrier that the machine shall be off-loaded only under the supervision of a representative of the contractor.

The machine shall remain the property of the contractor until it is accepted by the Government at Hill AFB.

All costs associated with the manufacture, shipping, installation, testing and preparation of the machine for final acceptance at Hill AFB shall be the responsibility of the contractor.

The contractor shall be required to remove the old machine, clean, cosmoline, palletize, cover with eight mil visqueen or other covering suitable for outside storage and move it to a location outside of the building as designated by the Group Manager.

10.4 The contractor shall be responsible to furnish all tools and equipment required to install the machine and perform the tests specified in this specification. The Government shall furnish no tools or equipment.

10.5 Prior to award, all chemicals and hazardous materials, including but not limited to oils, greases, metalworking fluid, coolant, and refrigerants, required to make the equipment operational shall be identified by the contractor and are subject to approval by Hill AFB. All chemicals and hazardous materials required for testing at the contractors facility shall be supplied by the contractor and shall remain the property of the contractor. The contractor shall deliver the equipment free of chemicals and hazardous materials. All chemicals and hazardous materials, or equivalent, required to test and run the equipment at Hill AFB will be supplied by Hill AFB.

If metalworking fluid/coolant is required, the equipment shall be capable of utilizing the metalworking fluid/coolant used by Hill AFB. Brands and codes used by Hill AFB will be provided to the contractor after award of contract. If the equipment uses other fluid/coolant than Hill AFB, the contractor shall provide all Material Safety Data Sheets (MSDS) for the fluid/coolant required the machine operation.

The contractor shall furnish all tooling, including but not limited to high-speed cutters, carbide inserts, insert holders, grinding wheels, dressing tools, etc., needed to perform the tests for each machine.

10.6 Special equipment, measuring equipment, and machine alignment equipment etc., required by the contractor to align the machine and perform the tests specified herein shall be furnished by the contractor and shall remain the property of the contractor.

All material to run the tests shall be supplied by the contractor. The contractor shall determine exact amounts of material furnished. The amounts of material shall be held to the minimum required to perform the tests.

10.7 The contractor shall supply and deliver with the machine three original copies each of “as built” standard manuals containing all necessary electrical wiring diagrams (drawn according to NFPA standards) hydraulic schematic diagrams, operator's manuals, parts lists, preventive maintenance instructions, part programming manuals (if applicable) and drawings of machine components and all other instructions for operation and maintenance of the machine and its peripheral equipment. All electrical diagrams shall contain average electronic characteristic waveform and voltage readings at pre-selected points throughout the system.

10.8 All hardware required for anchoring the machine to the foundation shall be furnished by the contractor.

10.9 The contractor shall be required to provide and install all necessary fusible disconnects, circuit breakers, circuit breaker boxes, and conduit to hard wire the machine into the buss duct. . Once the equipment is connected to power, it shall be disabled during the installation process and only unlocked by the contractor when required. Hill AFB Instruction 91-302, Control of Hazardous Energy (Lockout/Tagout) shall be required to protect contract employees, as well as, Government employees from electrical harm. Power source will be located within 25 feet of machine placement.

10.10 Training requirements.

The contractor shall provide training as specified for each of the skills listed below (to include tuition and all training materials required). The training shall take place at Hill AFB.

1. Machine operator

40 Hours

2. Maintenance

16 Hours

3. Follow up training

24 Hours

10.11 The contractor shall provide a qualified technician(s) to complete the above training that is knowledgeable in all operations of the system. This technician shall provide training to the operator(s) concerning proper operation of the system components. This orientation shall be provided after satisfactory completion of all inspections, tests, examination and checks required in this Purchase Specification, but before final acceptance of the system.

11.0 Inspection and Run-off test requirements.

The contractor shall be responsible for the performance of all inspection and test requirements specified in this Purchase Specification. Initial testing shall be at the manufacturer’s facility. The Group Manager shall be given the opportunity to witness this testing. Final inspection and testing will be at Hill AFB.

11.1 Verification test report.

The manufacturer's standard verification test report shall be prepared by the contractor and submitted to the Group Manager.

11.2 Tests.

The machine shall pass the following tests or it shall be rejected. The contractor shall furnish all instruments, materials and tools required to perform and evaluate these tests. All measuring instruments shall have evidence of calibration traceable to the National Bureau of Standards.

11.3 Operational test.

The machine shall be operated at a no load condition for not less than 4 hours. Proper operation of all controls, motors, adjusting mechanisms, and other accessories shall be verified during the trial period. If the machine fails under the no load testing, the test shall be restarted until it completes the full 4 hours without interruption or failure.

The machine will be inpected using the following criteria:

All tooling supplied by seller will be inspected and reviewed by the Hill AFB project manager.

Tool change system will be demonstrated to and reviewed by the HILL AFB project manager. Loading of long and large tools will be demonstrated to the HILL AFB project manager.

All programming supplied by the seller will be reviewed by the HILL AFB project manager.

All machine setup procedures will be demonstrated to and reviewed by the HILL AFB project manager. Tool setup, tool length and size management, and work coordinate establishment procedures will be demonstrated to and reviewed by the HILL AFB project manager.

Probing system will be demonstrated to and reviewed by the HILL AFB project manager. All setup procedures and requirements of probing system will be reviewed by the HILL AFB project manager. All probing routines, programming, and part datum establishment using probe will be demonstrated to and reviewed by the project manager. Tool length setting hardware and software will be demonstrated to and reviewed by the HILL AFB project manager.

Coolant system will be check for functionality. All coolant delivery nozzles will be check for functionality. Filtration system will be checked for functionality and will be reviewed by the HILL AFB project manager.

Accuracy of Machine check. Machine will demonstrate ablility to maintain accuracies defined in Section 11.5. Final machine accuracies will be reviewed by the HILL AFB project manager.

Final machine documentation will be reviewed by the HILL AFB project manager.

All machine installation requirements will be reviewed by the HILL AFB project manager. Mounting feet placement and foundation requirements will be reviewed by the HILL AFB project manager.

All preventative maintenance tasks will be demonstrated to and reviewed by the HILL AFB project manager. All oil reservoirs and lubrication systems will be reviewed by the HILL AFB project manager. All access doors required for machine maintenance and repair will be identified to the HILL AFB project manager.

Cooling and refridgeration systems will be reviewed by HILL AFB project manager. All chemicals used in cooling and refridgeration systems will be identified to HILL AFB project manager.

All machine gaurding and safety requirements will be reviewed by HILL AFB project manager. All interlocks, gaurding, and safety measures will be tested for functionality and demonstrated to the HILL AFB project manager.

All chemicals required to maintain functionality of machine will be identified to the HILL AFB project manager. This include all oils, refridgerants, coolants, and greases. Any chemicals or materials that may be hazardous or require special disposal procedures will be identified to the HILL AFB project manager.

All machine power hook-ups will be reviewed by the HILL AFB project manager. This include air, electricity, and water hookups.

The machine enclosure will be inspected for leaks and non-containment of metal working fluids. The machine will be free of leaks prior to buy-off.

11.4 Performance tests.

The machine shall be subjected to the following cutting tests to determine to the conformance accuracies of Table II.

The following part will be ground according to dimensions shown (Picture 1, Picture 2, and Picture 3). There are four features to be ground. All features will be free of grinding burns and other surface defects. Part will be check for grinding burns prior to acceptance. All features will have a surface finish of 16 Ra or better. Contractor will supply tool holders, grinding wheels, and programming to Hill AFB. The parts will be ground using Norton 32A60-H8VBE or equivalent grinding wheels. Full part dimensions and feature locations will be available after the award of the contract. Fixture for part clamping will be supplied by Hill AFB.

11.5 Alignment accuracy tests.

Each machine shall be tested to determine that it complies with the alignment requirements of Table II.

Positioning in 3-axis move: .00031”

Positioning in 1-axis move: .00008”

Repeatability in 1-axis move: .00008” TABLE II (Accuracies and Repeatability)

12.0 Acceptance of the machine.

If the machine fails to pass any test in the requirements of this Purchase Specification it shall be rejected.

After the machine has passed all of the tests required by this Purchase Specification, the machine will be accepted by the Group Manager. The Group Manager will sign the test report indicating that the tests were witnessed by a representative of the using activity and that all of the tests were performed satisfactorily.

13.0 Warranty.

Items proposed shall be warranted as is customary in the trade. The standard commercial warranty, if applicable, shall apply to items offered in response to this solicitation. Offerors are requested to include a copy of each applicable warranty with their response to this solicitation. Warranty is to start when the responsible government official makes the final buy off.

(Picture 1)

(Picture 2)

(Picture 3)