发明名称 |
Method of broaching outer periphery of lobe-type rotor of roots-type fluid machine, and broaching cutter used in the method |
摘要 |
A broaching method for finishing an outer peripheral surface of a resin layer of a resin-coated lobe-type rotor for a rotary fluid machine of a Roots type, which includes the steps of forming, with a leading grooving cutter, at least one chip-breaker groove in the outer peripheral surface of the resin layer, such that the chip-breaker groove extends in a broaching direction parallel to an axis of rotation of the rotor. The method further includes the steps of finishing at least a portion of the outer peripheral surface of the resin layer with a trailing finish cutter having a cutting edge contour corresponding to the portion of the outer peripheral surface of the resin layer, which is finished by the finish cutter after the chip-breaker groove is formed therein by the grooving cutter. A composite broach or formed broach having the grooving and finish cutters is fed such that the grooving cutter leads the finish cutter in the broaching direction.
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申请公布号 |
US4693813(A) |
申请公布日期 |
1987.09.15 |
申请号 |
US19860890630 |
申请日期 |
1986.07.30 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
TAKESHITA, HAJIME;IWASE, TAKAHIRO;MASUDA, NAOFUMI;SIBATA, TAKUO;MOCHIZUKI, HIROYUKI;KOBAYASHI, NOBUO;KAWAKAMI, SEIHO;KUROIWA, YOSIO |
分类号 |
B23D37/22;F01C1/12;(IPC1-7):B23D15/02 |
主分类号 |
B23D37/22 |
代理机构 |
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代理人 |
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