Title:
PRODUCTION METHOD OF METAL MOLD FOR MOLDING FOAMED PRODUCT PATTERN FOR USE IN SUBLIMATION PATTERN CASTING METHOD
Document Type and Number:
WIPO Patent Application WO/2007/023738
Kind Code:
A1
Abstract:
A production method of a metal mold for molding a foamed product pattern for use in sublimation pattern casting method comprising a step for determining the final three-dimensional data of the profile of a foamed product pattern correlated with the three-dimensional data of the profile of a casting in order to mold a casting as the final product having target dimensions, a step for inputting the final three-dimensional data thus determined to the controller of an NC machine tool, and a step for cutting a cavity having the profile of the foamed product pattern thus determined in the base material of a molding die by means of the NC machine tool. Computer simulation of a casting by sublimation pattern casting method employing a virtual foamed product pattern is performed and the final three-dimensional data is determined based on information obtained from deformation of the casting due to the simulation, or a foamed product pattern is manufactured by way of trial and a casting is actually manufactured by way of trial by sublimation pattern casting method using the foamed product pattern manufactured by way of trial, and the final three-dimensional data is determined by feeding back the difference between the dimensions of the casting manufactured by way of trial and the target dimensions. Alternatively, the final three-dimensional data may be determined by using both the simulation and feedback.
Inventors:
KATO TATSUHIKO (JP)
Application Number:
PCT/JP2006/316233
Publication Date:
March 01, 2007
Filing Date:
August 18, 2006
Export Citation:
Assignee:
SINTOKOGIO LTD (JP)
KATO TATSUHIKO (JP)
KATO TATSUHIKO (JP)
International Classes:
B22C7/02
Foreign References:
| JPH0489154A | 1992-03-23 | |||
| JP2002373187A | 2002-12-26 | |||
| JPH0327842A | 1991-02-06 | |||
| JPH10328781A | 1998-12-15 |
Attorney, Agent or Firm:
YAMASAKI, Yukuzo et al. (Sogo Nagatacho Bldg. 8F 11-28, Nagatacho 1-chom, Chiyoda-ku Tokyo 14, JP)
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