FORGED PRODUCT, ITS PRODUCING METHOD, AND MOLD FOR FORGING

FORGED PRODUCT, ITS PRODUCING METHOD, AND MOLD FOR FORGING

PROBLEM TO BE SOLVED: To provide a method for producing a forged product without causing dent and lap. SOLUTION: A blank 10 has convex-surface parts 13 composed of a plurality of steps at a portion corresponding to a cylindrical part of the forged product. The position of a boundary 14 between a fir...

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1. Verfasser: NATSUI MASAYUKI
Format: Patent
Sprache:eng
Schlagworte:
FORGE FURNACES
FORGING
HAMMERING
MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PRESSING METAL
PUNCHING METAL
RIVETING
TRANSPORTING
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creator NATSUI MASAYUKI
description PROBLEM TO BE SOLVED: To provide a method for producing a forged product without causing dent and lap. SOLUTION: A blank 10 has convex-surface parts 13 composed of a plurality of steps at a portion corresponding to a cylindrical part of the forged product. The position of a boundary 14 between a first step 13a and a second step 13b from the outer periphery of the convex surface part composed of the plurality of steps is made smaller than the inner diameter of the cylindrical part in the forged product, and the interval between the respective steps in the plurality of steps is connected with a smooth curve surface. Thus, the forged product can be produced without causing any dent at the bottom part and any lap at the edge part of the cylindrical part. COPYRIGHT: (C)2007,JPO&INPIT
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subjects FORGE FURNACES
FORGING
HAMMERING
MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PRESSING METAL
PUNCHING METAL
RIVETING
TRANSPORTING
title FORGED PRODUCT, ITS PRODUCING METHOD, AND MOLD FOR FORGING
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