Title:
METHOD FOR MANUFACTURING BRAKE PISTON
Document Type and Number:
Japanese Patent JP2007090387
Kind Code:
A
Abstract:
To provide a method for manufacturing a brake piston without developing the burr into a groove part formed on the outer peripheral surface in the edge part at the opening hole side.
A bottomed cylindrical blank W whose opening end part W1 has smaller diameter than a barrel part W2, is concentrically fitted to a main shaft 2, and a pushing roller R1 having a projecting part (a) is pushed against the blank peripheral part while rotating the blank W together with the main shaft 2 and thus, the brake piston Wa having a groove part on the peripheral part, is manufactured.
Inventors:
ISHIDA HIROAKI
IIO YOSHIO
MIZUMOTO HIROAKI
IIO YOSHIO
MIZUMOTO HIROAKI
Application Number:
JP2005283282A
Publication Date:
April 12, 2007
Filing Date:
September 29, 2005
Export Citation:
Assignee:
NIPPON SPINDLE MFG CO LTD
International Classes:
B21H1/18
Attorney, Agent or Firm:
Osamu Mori
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