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Precision Spring Forming of a Helical Torsion Spring for the Automotive Industry

black helical torsion spring

Project description:

At Stanley Spring and Stamping Corporation, we specialize in precision spring forming and finishing. The project highlighted here was manufactured for a client in the automotive industry, and exemplifies these capabilities. Composed of ASTM A228, 2.06 mm music wire, this helical torsion spring was formed on our advanced CNC torsion machine. After forming a black phosphate coating was applied, in compliance with General Motors standard GM4435M for protective coatings.The spring featured dimensions of 16.90 mm in height, and an outside diameter of 35.0 mm, and was formed to tolerances of ±.13 mm, and an angular tolerance of ±2°.

Working to the customer supplied prints; we currently manufacture 100,000 of these springs annually, with lead times of 2 to 4 weeks. For more information on this project, see the table below or contact us directly.

Highlights of this Precision Spring Forming Project

Product Description Helical Torsion Spring
Precision Spring Forming Capabilities Applied/Processes
Spring Forming
Black Phosphate Coating
Equipment Used to Manufacture Part CNC Torsion Machine
Overall Part Dimensions OD: Ø 35.0 mm
Height: 16.90mm
Tightest Tolerances ±0.13 mm
Angular: ± 2°
Material Used Music Wire per ASTM A228
OD: Ø 2.06mm
Material Finish Black Phosphate Coated per GM4435M
In process testing/inspection performed As required to print
Volume Estimated 100,000 yearly
Delivery/Turnaround Time 2 to 4 weeks
Delivery Location Texas
Standards Met Customer Specifications, 2D CAD Drawing
Product Name Helical Torsion Spring