Technical Proposal Evaluation v2.pdf

Technical Proposal Evaluation – Critical Factor List

Item Acceptable Non-

Acceptable

Remarks

Requirements and Specifications

2.1. Design – The CMM shall be one of

the manufacturer’s current production models; new and unused. The CMM related components and accessories shall meet or exceed the minimum requirements for design, construction, functional capability, size and performance as specified herein. All parts subject to wear, breakage or distortion shall be readily accessible for adjustment, replacement and repair.

2.2. Measuring System – Either the U.

S. Customary System of Units (US) or the International System of Units (SI) may be used in the design and manufacture of the CMM. The CMM shall be inch/metric switchable with automatic conversion by the system between the two systems of measurement.

Components

3.1. CMM – The CMM shall consist of a

moving bridge system including a fixed granite table as the base of the machine. The measuring machine shall be of sufficient size and stability to provide full measurement capabilities within a minimum 900mm (X) x minimum 1200mm (Y) x minimum 650mm (Z) measurement envelope with all necessary clearances needed for adequate measurement approach.

CMM overall height cannot exceed 11’ (3,353mm).

3.2. Inspection Table – The fixed

inspection table of the CMM shall be made from granite of sufficient size to accomodate all capacities and the working inspection volume of the

CMM as specified herein. The inspection table must be able to support parts weighing up to 1300kg (2,866 lbf) without degrading the measurement performance accuracy of the CMM or table flatness. The inspection table will have the manufacturer’s standard number of threaded inserts with center-to-center distances and diameter common for work-holding devices or fixturing.

3.3. Integrated Rotary Table – A rotary

table will be integrated into the granite of the inspection table, with the face of the rotary table beneath the surface of the inspection table to allow for unobstructed use of a fixturing plate attached using the aforementioned threaded inserts. The rotary table must be able to support workpieces and fixturing weighing at least 600kg (1,333 lbf) without a degradation in performance. The face plate of the rotary table must be at least 400mm in diameter and include M8 threaded holes to facilitate the mounting of jaw chucks for part stability during measurement. The rotary table must not have an axial runout greater than 0.1µm and a radial runout greater than 0.2µm.

3.4. Bridge Structure – The moving

bridge structure supporting the probe system will conform to standard industry practices and will be supported by air bearings for stability.

The bridge structure shall be designed and constructed to achieve maximum stability while at the same time minimizing any induced error resulting from temperature changes and particulate infiltration. The bridge structure will be made of the same material to minimize thermal expansion that would adversely affect the accuracy of the CMM.

3.5. Drive System – The bridge

structure, carriage crosslide and ram shall be driven by variable speed, high torque AC or DC servo motors. Linear scales shall be integrated with the servo drive systems to form a closed loop feedback system with both computer directed and manually directed by means of remote. The motion system shall have means for backlash compensation and provisions for halting movement of the entire bridge structure should the air supply be interrupted. The servo drive/motion control system shall monitor manual CMM operations, respond to instruction entered into the remote and execute the inspection routines according to inspection programs entered into the computer control of the CMM. The drive system shall be coordinated by the computer control of point-to point, two and three dimensional contouring motion(s). The motion control drive system shall have three-axis vectoring capabilities so as to allow approach and probing at any vector normal to a feature.

3.6. Linear Measurement Devices

(scales) – Linear measurement scales shall be constructed of wear resistant materials and shielded to prevent damage and contamination. The scales shall have a uniform coefficient of thermal expansion in relation to the mounting structure and have a resolution of 0.08µm or better.

3.7. Articulating Probe System – An

articulating CMM head is not required for this CMM. However, the CMM must be capable of switching between a fixed head probe system and an articulating head probe system from the factory, in case future workload dictates the purchase of this additional head. The CMM must allow this probe head change by the end user (QVC) as workload demands.

3.8. Fixed Head Probe System – The

CMM will be provided with a fixed, active scanning probe head. This probe head must be capable of handling assembled probes weighing at least 650g and measuring at least 800mm long. The fixed probe system must be manufactured and qualified in accordance with ISO-10360-2, having an MPE(E0)≤0.9+L/350µm and an MPE(E150)≤0.9+L/350µm at the ambient lab temperature of 20°C.

3.9. Probe Styli Kit – The contractor

will furnish a probe styli kit designed specifically for the probe combinations as described in 3.7 and 3.8, consisting of the standard minimum items or components commonly used in CMM measurement.

3.10. Reference Sphere – A reference

sphere will be provided for the qualification of each of the sensors included with the CMM.

Hardware

3.11.1.1. - High End Workstation Computer System

3.11.1.1.1. - Minimum one (1) Workstation-grade quad-core CPU or better

3.11.1.1.2. - 64-bit Windows operating system

3.11.1.1.4. - Minimum 64GB RAM

3.11.1.1.5. - DVD+RW compatible internal optical drive

3.11.1.1.6. - Sufficient RJ45 Gigabit LAN Ethernet ports for machine-computer communication and connection of the computer to our lab printer network.

3.11.1.2. – Two (2) 27” 16:9 LCD Monitors with cables

3.11.1.3. - US QWERTY Keyboard, wired

3.11.1.4. - Mouse, wired

3.11.1.5. - CMM Control Joystick Box, wired

Software

3.11.2.1. - Windows-based Operating System

3.11.2.2. - Geometric Dimensioning and Tolerancing per ASME Y14.5M

3.11.2.3. - Selection of geometric alogorithms per ASME Y14.5M

3.11.2.4. - Probe calibration routines

3.11.2.5. - Part programming routines

3.11.2.6. - Measurement and analysis of complex curves and surfaces

3.11.2.7. - Measurement and analysis of blade profiles

3.11.2.8. - Measurement and analysis of involute gear profiles

3.11.2.9. - STEP import/export compatibility

3.11.2.10. - Graphical presentation of results in part drawing format

3.11.2.11. - Printing capabilities to network printer

Peripheral Devices

4.1. Probe Rack and Storage Sockets –

A probe rack and stylus system holders shall be provided to house all items not in use. This rack should be able to accommodate probe head(s), holders for nine (9) articulating head adapter plates, and any other items needed for storage of probe head/stylus systems.

Additional Equipment

5.1. Air Filter / Regulator – The CMM

will utilize the current 100 psi shop air supply in the existing area. The contractor shall supply a means to remove contaminants and regulate the pressurized air entering into the

CMM.

5.2. Vibration Dampening System –

The contractor shall supply some means to reduce measurement error from vibrations not associated with the CMM. Anti-vibration isolation pads are acceptable.

5.3. Machine Manuals – Two (2)

complete hard copies of technical data (or a single electronic file of all manuals) will be submitted upon contract approval prior to delivery to ensure proper shop footprint specifications and familiarity with the CMM before delivery. This technical data will include items such as operating manuals, maintenance manuals, parts catalogs, parts lists, wiring schematics, lubrication charts, machine accuracy and alignment test results and shall be written in the English language.

Other Requirements

6.0. Environmental Tolerance – The

CMM will be located in a controlled environment wherein the temperature will be maintained at 68 degrees +/- 1 degree Fahrenheit over a 24 hour period with the humidity controlled to 30 – 50% non-condensing. The contractor shall state before contract approval whether the conditions will adversely affect the operation of the CMM.

7.0. Electrical Equipment – The

electrical system of the CMM and all electrical components thereof, will conform to the requirements of NEC and operate on 115 VAC +/- 10% utilizing standard NEMA 5-15 Duplex Receptacles. The contractor will provide full documentation of the electrical requirements and any power conditioning requirements before contract approval. All electrical equipment design and documentation is subject to final approval by the Government.

8.0. Nameplate – A corrosion resistant

nameplate identifying the CMM shall be securely attached to the granite inspection table. The nameplate should contain the information listed below. The captions may be shortened or abbreviated, provided the entry for each is clear to its identity:

• Manufacturer’s Name

• Manufacturer’s Model Designation

• Manufacturer’s Serial Number

• Power Input (volts, total full load amps, phase, frequency)

• Date of Manufacture

11.0. Warranty – All components of

this purchase will come with a 1 year warranty over hardware, software and computer operating system. This warranty will not be required to include normal wear on styli or collision damage of probe system. The warranty period will begin once installation, inspection, all testing and government acceptance has been approved by the contract monitor and representatives of the government.

12.0. Software Support – Vendor will

supply all software updates and/or patches free of charge for 1 year after acceptance. This software support will include 1 year of telephone support associated with all functions of the operation of the CMM.

13.0. Shipping – The contractor shall

include all costs associated with shipping or transport of all items associated with this purchase description to the final destination of Tinker AFB, OK. Upon delivery, Tinker AFB personnel will offload the equipment to a staging area until representatives of the contractor can be on site for final installation. Any special accommodations will be noted by the vendor prior to receipt of equipment. Staging of equipment will not exceed 14 calendar days upon receipt of equipment, unless negotiated and agreed upon by the vendor and contracting officer if changes from the original contract are deemed necessary.