ishikawa takashi
TRANSCRIPT
2Sanyo Technical Report Vol.27 (2020) No.1
å¡æ§å å·¥åé¡ã«å¯Ÿããèšç®æ©ã·ãã¥ã¬ãŒã·ã§ã³ã®æŽ»çšUtilization of Computer Simulation for Problems of Metal Forming
ç³å· ååž*
ISHIKAWA Takashi
Synopsis: In order to strengthen the competitiveness of Japanese manufacturing industry in the international competition
of economy and technology due to globalization, we must solve more difficult issues than ever before, such
as diversification of needs for products, shortening of new product development period, strengthening of
environmental/energy saving measures, pursuing high added value/low cost and dealing with the problem of
lack of skilled engineers. IT technology has gained attention as a means for overcoming such problems and
increasing competitiveness, and has rapidly spread. In particular, numerical simulation is being utilized to shorten
the time from design to manufacturing of new products and to carry out rational solution of problems. Computer-
aided engineering (CAE) such as finite element analysis (FEM) is becoming practical in the field of metal forming
from 2D analysis to 3D analysis. Here, some examples of simulation application to various problems of metal
forming, such as (1) hot forging for net-shape and net-property, (2) prediction of the dimensional change in
cold forging, (3) cold spot forge bonding of dissimilar sheet materials, (4) prediction of internal fracture in cold
extrusion, (5) simulation of form rolling, (6) simulation of surface micro-defects in plate and sheet rolling, are
selected from the author's previous research and introduced.
Keywords: metal forming; numerical simulation; forging; rolling; finite element method; CAE.
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