Metal deforming – By extruding through orifice – Utilizing internal forming means
Patent
1983-02-18
1985-04-09
Gilden, Leon
Metal deforming
By extruding through orifice
Utilizing internal forming means
291592, 72343, B21C 2318
Patent
active
045093539
ABSTRACT:
Gears are formed from annular blanks in a gear-forming apparatus including a die block formed with an axial bore and teeth radially projecting into the bore, a cylindrical punch sleeve axially movable toward and away from the bore in the die block, a mandrel movable with the punch sleeve into and out of the bore in the die block, and a backup sleeve axially movable into and out of the bore in the die block in opposite directions to the directions of movement of the sleeve punch and mandrel, wherein gears are formed by preliminarily forcing at least one of the blanks into the bore in the die block until the blank is partially deformed by the teeth of the die block; placing another blank on the preceding blank so that the subsequent blank is received on the preceding blank; causing the mandrel to extend through the respective center holes in the preceding and subsequent blanks; pressing the preceding and subsequent blanks between the end faces of the punch and backup sleeve and forcing the two blanks through the bore in the die block so that the preceding blank is caused to form gear teeth on its outer peripheral surface; and forcing the subsequent blank and the gear resulting from the preceding blank through the bore in the die block for withdrawing the gear out of the bore in the die block.
REFERENCES:
patent: 3605475 (1971-09-01), Eakin et al.
patent: 3813908 (1974-06-01), Roger
patent: 3910091 (1975-10-01), Samanta
patent: 4111031 (1978-09-01), Vennemeyer
Arita Masashi
Ike Masahide
Gilden Leon
Nissan Motor Company Limited
LandOfFree
Method of and apparatus for forming gears 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 and apparatus for forming gears, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for forming gears will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1162978