发明名称 MANUFACTURE OF CAM PLATE FOR RESISTANCE WELDING GUN
摘要 PROBLEM TO BE SOLVED: To reduce machining time, to improve dimensional precision and to stabilize quality by using a carbon steel for JIS machine structures in the range of S35C-S55C, machining simultaneously the outline, cam groove and hole through fine blanking after spheroidizing annealing, applying a heat treatment to the entire plate after the machining, and imparting a required hardness to form a product. SOLUTION: The manufacturing is by four processes in figure (b) : (STO1) preparation of a base material; (STO2) the base material is spheroidized, given a Rockwell hardness of 28-32, and improved in cold blanking characteristics; (STO3) the outer circumference 31, attaching hole 32, 33 and cam groove 34 of a cam plate 30 are blanked simultaneously by fine blanking, also with a press oil used as a lubricant containing at least 10% or more of molybdenum disulfide, improving the roughness on the broken-out section in blanking; and (STO4) the blanked cam plate 30 is quenched, tempered and hardened to have a Rockwell hardness 52-58.
申请公布号 JPH10314955(A) 申请公布日期 1998.12.02
申请号 JP19970128868 申请日期 1997.05.19
申请人 HONDA MOTOR CO LTD;YAMAMOTO SEISAKUSHO:KK 发明人 FUJITA YOSHITAKE;MARUO MASARU;YAMAMOTO KATSUHIRO;MASAKI NOBORU
分类号 B21D28/00;B21J3/00;B23K11/11;C10M103/06;C10N40/20;C21D9/00;(IPC1-7):B23K11/11 主分类号 B21D28/00
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