Large Component CNC Machining of a Stainless Steel Seismic Joint Cover for the Construction Industry

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Large Component CNC Machining of a Stainless Steel Seismic Joint Cover for the Construction Industry

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Silicon Valley Precision was contracted by a customer in the construction industry to fabricate custom stainless steel seismic joint covers.

This project posed a number of aesthetic and structural demands, including the accommodation of multi-directional pedestrian traffic as well as being ADA complient. We were able to creatively manufacture this large part to the specialized design criteria using our advanced SNK RB2NM 5 face bridge type machining center, with a custom built blade system to cut the 135 grooves .125 dp x .125 wide x 58″ long. The hot rolled, annealed, and pickled 304L stainless steel was milled to a finished dimension of 6′-2¼” long x 5′ wide x 3/4″ thick, while holding the tightest tolerance of ±0.005″. The part was then deburred, A U channel welded on the bottom, cleaned, and packaged for shipment.

This seismic joint cover was thoroughly tested for accuracy and quality, including dimensional inspections, visual inspection, as well as first article inspection reports. 116 covers were produced and delivered to San Francisco, California, at a rate of 5-10 pieces per day for the duration of the project. Our large machining capabilities allow Silicon Valley Precision to accurately and reliably produce complex and demanding parts for customers in a variety of industries and applications. For more about this seismic joint cover project, or our cost effective large part precision machining services, please see the table below or contact us directly.

Highlights of this Stainless Steel CNC Machining Project

Product DescriptionThis cover is used in a seismic joint system capable of accommodating multi-directional pedestrian traffic
CNC Machining Capabilities Applied/ProcessesPrimary:
CNC Milling

Equipment Used to Manufacture PartSNK RB2NM with custom built blade system to cut 135 grooves.
Overall Part DimensionsLength: 6'-2¼"
Width: 5"
Thickness: ¾"
Tightest Tolerances+/- .005"
Material Used304L Stainless Steel Plate
Hot Rolled
Material FinishMill Finish
In process testing/inspection performedDimensional Inspection
Visual Inspection
First Article Inspection Reports
Industry for UseConstruction
Delivery/Turnaround TimeDeliver 5-10 pieces/day for duration of project
Delivery LocationSan Francisco, California
Standards MetCustomer Specifications
2D CAD Drawing
Product NameSeismic Joint Cover

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