Method of broaching outer periphery of lobe-type rotor of roots-

Details Method of broaching outer periphery of lobe-type rotor of roots- Method of broaching outer periphery of lobe-type rotor of roots-

1987-06-23

1989-09-26

Bilinsky, Z. R.

Cutters, for shaping

Rectilinear broach

Hollow tool for surrounding workpiece

407 18, 407 19, B23D 4300

Patent

active

048696234

ABSTRACT:
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.

REFERENCES:
patent: 1318537 (1919-10-01), Bunting
patent: 1463473 (1923-07-01), Lapointe
patent: 2140146 (1938-12-01), Tautz
patent: 2312929 (1943-03-01), Phaneut
patent: 2679680 (1954-06-01), Hanks
patent: 3762006 (1973-10-01), Tersch et al.

Affiliated with

Also associated with

Rating

Method of broaching outer periphery of lobe-type rotor of roots- 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 of broaching outer periphery of lobe-type rotor of roots-, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of broaching outer periphery of lobe-type rotor of roots- will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-184680