US 12,005,535 B2
Method for producing shrink-fitted member
Fumitaka Takeuchi, Kasugai (JP); Shuhei Kuno, Komaki (JP); and Seiya Sawada, Komaki (JP)
Assigned to NGK INSULATORS, LTD., Nagoya (JP)
Filed by NGK Insulators, Ltd., Nagoya (JP)
Filed on Feb. 13, 2023, as Appl. No. 18/168,007.
Claims priority of application No. 2022-050610 (JP), filed on Mar. 25, 2022.
Prior Publication US 2023/0321770 A1, Oct. 12, 2023
Int. Cl. B23P 11/02 (2006.01); B21D 22/20 (2006.01); B21D 53/06 (2006.01)
CPC B23P 11/025 (2013.01) [B21D 22/20 (2013.01); B21D 53/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for producing a shrink-fitted member by arranging a pillar shaped ceramic body inside a deep-drawn stainless steel pipe and shrink-fitting them, the method comprising:
a preparing step of preparing the deep-drawn stainless steel pipe produced by deep-drawing and the pillar shaped ceramic body;
a heating step of heating the deep-drawn stainless steel pipe to 900° C. or more; and
a shrink-fitting step of inserting the pillar shaped ceramic body into the heated deep-drawn stainless steel pipe and shrink-fitting them.