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Precision Spring Forming of a Stainless Steel Extension Spring for the Electrical Industry

single passivized spring

two passivized springs

Project description:

Stanley Spring and Stamping Corporation was recently contracted by a manufacturer of electrical components to produce the extension spring highlighted here.

The spring was composed of a tempered 17-7 stainless steel, with a diameter of .048". Springs were formed on our advanced spring coiling equipment prior to being passivated. This extension spring featured dimensions of .376" in width and 2.950" in length, with specifications such as 1 lb. of initial tension, 14 lbs. (±1.50) of total load, and a corrected stress of 172,000 psi. Manufactured to tolerances of ±.005", at a volume of 50,000 annually, we deliver orders to this Illinois client with 2 to 4 week lead times. For more information see the table below.

For more information on this project, or the processes used to manufacture it, see the table below or contact Stanley Spring directly.

Highlights of this Precision Spring Forming Project

Product Description  
Precision Spring Forming Capabilities Applied/Processes
Spring Forming
Equipment Used to Manufacture Part Spring Coiler
Overall Part Dimensions .376 X 2.950
Tightest Tolerances ±.005"
Material Used Stainless Steel 17-7 Spring Temper
OD: Ø 0.048"
Material Finish Passivated
Additional Facts Initial Tension: 1 lbs.
Total Load: 14 lbs. ± 1.50
Corrected Stress: 172,000 psi
In process testing/inspection performed As required to print
Industry for Use Electrical Industry
Volume Estimated 50,000 yearly
Delivery/Turnaround Time 2 to 4 weeks
Delivery Location Illinois
Standards Met Customer Specifications, 2D CAD Drawing
Product Name Extension Spring