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CNC Milling & Stamping of a High Strength Steel Spring Seat Bracket for the Automotive Industry

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A Michigan automotive industry client contracted us to manufacture 500 spring seat brackets. At Sherwood Prototype, Inc. we specialize in short run manufacturing work; our facility is geared towards the special needs of this niche, which require a wide range of manufacturing capabilities.

This particular product was designed to hold coil springs and struts in place on a passenger vehicle, this high stress application required the use of a high strength steel. The raw material was cut on our 5 axis laser cutter, which formed the tailored blanks with finished trim. The part was then stamped and CNC milled, with laser cutting again being used to provide a final trim. The finished seat bracket measured 177mm in diameter, 64mm in height, and met tolerances of ±.005", all of which were verified by CMM dimensional inspections. Completed with an E-coating, the parts were delivered to the customer along with their certificate of compliance with a 4 week turn around.

For more information on this project, see the table below or contact us directly.


CNC Milling & Stamping Project Highlights

Product Name
Spring Seat Bracket
Product Description
This bracket holds coil springs and struts in place on passenger vehicles.
Capabilities Applied/Processes
Primary:
Laser Cutting
  • Tailored Blanks
  • Finished Trim
CNC Milling
  • In house tool design and manufacturing
    to control quality and improve lead time
Stamping
  • Extrusions and hydraulic forming
  • 5 Axis Laser Cutting of final trim
Secondary:
E-Coating
Equipment Used to Manufacture Part
200 ton Hydraulic Press
5 axis Laser
CNC Lathe
CNC Mill
CMM Measuring Machine
Overall Part Dimensions
Diameter: 177mm
Height: 64mm
Tightest Tolerances
Less Than ±.005"
Material Used
High Strength Steel
Material Finish
E-Coated per Customer specs
In process testing/inspection performed
CMM Inspection
  • Inspected on Temperature Controlled CMM
  • Detailed Inspection Reports Generated
Certificates of Conformance Provided to Client
Industry for Use
Automotive
Volume
500
Delivery/Turnaround Time
4 Weeks
Delivery Location
Michigan
Standards Met
Customer supplied print, 2D CAD Drawing

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