Method for manufacturing a high-strength spring

Details Method for manufacturing a high-strength spring Method for manufacturing a high-strength spring

1992-03-13

1993-07-06

Yee, Deborah

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148908, C21D 902

Patent

active

052250083

ABSTRACT:
A spring steel containing 0.35 to 0.50% of carbon is refined to the hardness of .phi. 2.50 to 2.70 mm in Brinell indentation diameter (HBD) by rapid cooling for quenching and tempering. This spring steel is subjected to warm shot peening at a temperature of 150.degree. to 300.degree. C. (423 to 573 K.) by using long-lived practical shots with the normal hardness of .phi. 2.65 to 2.80 mm in HBD, whereupon a high-strength spring is obtained having a compressive residual stress in its surface and enjoying the maximum shearing stress of 110 to 135 kgf/mm.sup.2 (1080 to 1325 MPa).

REFERENCES:
patent: 5118469 (1992-06-01), Abe et al.

Affiliated with

Also associated with

Rating

Method for manufacturing a high-strength spring does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for manufacturing a high-strength spring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacturing a high-strength spring will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1686972