JPS5630034A - Forming of corrugated sheet - Google Patents

Forming of corrugated sheet

Info

Publication number
JPS5630034A
JPS5630034A JP10505879A JP10505879A JPS5630034A JP S5630034 A JPS5630034 A JP S5630034A JP 10505879 A JP10505879 A JP 10505879A JP 10505879 A JP10505879 A JP 10505879A JP S5630034 A JPS5630034 A JP S5630034A
Authority
JP
Japan
Prior art keywords
punch
corrugated
forming
corrugated sheet
large diameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10505879A
Other languages
Japanese (ja)
Inventor
Osamu Higuchi
Yoshihiro Osumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10505879A priority Critical patent/JPS5630034A/en
Publication of JPS5630034A publication Critical patent/JPS5630034A/en
Pending legal-status Critical Current

Links

Landscapes

  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

PURPOSE: To achieve improvement in the precision of corrugated sheet by molding sheet into corrugated form with punch having a large diameter R.
CONSTITUTION: When molding any object into corrugated form with a punch having a large diameter R, the tensile strength of A, A' works towards the corrugated section direction. Inasmuch as the punch 7 is provided with R, the tensile strength of B, B' works towards the width direction of the corrugation. Said tensile B, B' functions to offset the spring back force against A, A' of the sectional direc- tion, thereby minimizing variance of the pitch precision in forming a single corrugation.
COPYRIGHT: (C)1981,JPO&Japio
JP10505879A 1979-08-20 1979-08-20 Forming of corrugated sheet Pending JPS5630034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10505879A JPS5630034A (en) 1979-08-20 1979-08-20 Forming of corrugated sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10505879A JPS5630034A (en) 1979-08-20 1979-08-20 Forming of corrugated sheet

Publications (1)

Publication Number Publication Date
JPS5630034A true JPS5630034A (en) 1981-03-26

Family

ID=14397369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10505879A Pending JPS5630034A (en) 1979-08-20 1979-08-20 Forming of corrugated sheet

Country Status (1)

Country Link
JP (1) JPS5630034A (en)

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