To provide a method for heating a die device including a holding tool for efficiently heating a die at the target heating temperature with excellent precision when forging hard-to-work materials such as titanium alloy and Ni-based alloy.
An outer circumferential part of a die 1 consisting of upper and lower dies 10, 20 is held by die holders 12, 22. Heater plates 11, 21 for heating the die are arranged between the die 1 and die holding means 14a, 24a consisting of heat insulating plates 13, 23 and die plates 14, 24. When heating a forging die device in which the die holders 12, 22, the die holding means 14a, 24a, and the die plates 14, 24 are integrated by a fastening means using tie rods 16a, 26a with coned disk springs 16d, 26d being inserted therein, the preheated die 1 is installed on the heated die holding means 14a, 24a, and then, the die 1 is heated by the heating means, and forming surfaces 10a, 20a of the die are heated to the required temperature immediately before the forging.
HONDA KYOEI
ARAKI SHIGEOMI
MURAKAMI SHOGO
KOJIMA SOICHIRO
MOMOTA YUSUKE
| JP2011031285A | 2011-02-17 | |||
| JPH02148744U | 1990-12-18 | |||
| JP2002096134A | 2002-04-02 | |||
| JPH0377736A | 1991-04-03 | |||
| JPS6080028U | 1985-06-04 | |||
| JP2003103331A | 2003-04-08 | |||
| JP2011031285A | 2011-02-17 |
Seiji Kameoka
Hironori Takenaka
Toru Sakatani