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특허 상세정보

Process of durability improvement of gear tooth flank surface

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B24B-001/00   
미국특허분류(USC) 451/033; 451/034; 451/035; 451/037; 451/047; 451/054; 451/055; 451/057
출원번호 US-0170198 (2005-06-29)
등록번호 US8062094 (2011-11-07)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 5  인용 특허 : 29
초록

Pinion gears for planetary gear transmissions are hobbed, heat treated, and then ground to get better control of the leads/profiles on all the gear teeth. Then a light shot peening is applied to the tooth flanks to achieve the desired compressive residual stresses on the tooth surface. By applying the process in the controlled manner specified, the surface is not over-cold worked. Next, a chemically assisted isotropic surface treatment is applied over the pinion gears to improve the surface finish on the gear teeth. For low speed applications the surface...

대표
청구항

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A method for improving the durability of a pinion gear comprising the steps of:hobbing and heat treating the pinion gear;grinding tooth flanks on the pinion gear after hobbing and heat treating the pinion gear;shot peening the tooth flanks, after grinding the tooth flanks, of the pinion gear; and,polishing surfaces of the tooth flanks, after shot peening, using a chemically assisted surface finishing process to obtain a maximum tooth flank s...

이 특허에 인용된 특허 (29)

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