PWS - Grinding BPA.pdf

PERFORMANCE WORK STATEMENT (PWS)

GRINDING SERVICES

1.0 DESCRIPTION OF SERVICES/INTRODUCTION: The Model Fabrication Facility of the Naval Surface Warfare Center, Carderock Division (NSWCCD) requires precision grinding services be performed on a variety of government furnished materials (GFM), including high-yield carbon steel plates and pre-cut shapes and products.

2.0 BACKGROUND: At times, the projects assigned to the Model Fabrication Facility require precision grinding services be performed on steel plates and pre-cut shapes to insure the products meet all project specifications.

3.0 OBJECTIVE: To solicit and obtain precision grinding services.

3.1 The contractor shall provide precision grinding services on a variety of variety of government furnished materials (GFM).

3.2 The contractor shall accomplish the following.

3.2.1 The Contractor will insure that the GFM is serviced in accordance with the BPA Delivery Order.

3.2.2 The Contractor will insure that all plates and pieces are to be ground to

63 RMS on both sides.

3.2.3 The Contractor will insure that, as the required grinding services are performed, the temperature of all plates and pieces must not exceed 300 degrees Fahrenheit during grinding operations.

3.2.4 Typical grinding requirements will be to three decimal place dimensions, with tolerance requirements ranging from +.003"/-.000" to +.005”/-

.005", and flat/parallel from .003" to .005".

3.2.5 All GFM plates will have material tracking identification numbers that must be maintained and restored by the contractor during and after the grinding process.

3.2.6 The Contractor shall also package or palletize completed plates/parts using paper and light oil protection for all ground surfaces, and return ship to NSWCCD.

4.0 SPECIAL QUALIFICATIONS: N/A.

5.0 APPLICABLE DOCUMENTS:

5.1 Upon completion of the grinding requirements, the Contractor is required to provide final documented inspection of each completed piece, with confirmation that required specifications have been met.

6.0 GOVERNMENT FURNISHED EQUIPMENT/PROPERTY/INFORMATION:

6.1 GFM will consist of, but are not limited to, A-36, Mil-s-16216, HY-80, HY-100 steel plate stock.

6.2 All steel products (GFM) delivered to the Contractor will be provided as flat stock, water-jet cut to size, and palletized for shipping, if required.

6.3 Potential plate width may range from 1” to 96”, with potential lengths from 6” to

240”.

6.4 GFM plate thicknesses provided will typically range from 3/16” to 1”; however, plates may be up to 1.5” thick.

7.0 DELIVERABLES: N/A.

8.0 SECURITY REQUIREMENTS: N/A.

9.0 ECMRA Standard Language – NMCARS April 2018: N/A.