JIS-B-0410-1991-R2005-ENG.pdf
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1、. . . UDC 621.753.1 :621.965:621.98 O JIS JAPANESE INDUSTRIAL STANDARD General tolerances for parts formed by shear from metal plates Translated and Published by Japanese Standards Association Printed in Japan 4 s I Copyright Japanese Standards Association Provided by IHS under license with JSALicen
2、see=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:16:00 MSTNo reproduction or networking permitted without license from IHS -,-,- In the event of any doubt arising, the original Standard in Japanese is to be final authority. Copyright Japanese Standards Association Provid
3、ed by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:16:00 MSTNo reproduction or networking permitted without license from IHS -,-,- J I S BU0410 91 4933608 O083364 4 1 UDC 621.753.1:621.965:621.98 JAPANESE INDUSTRIAL STANDARD J I S Gener
4、al tolerances for parts formed by B 0410-1991 shear from metal plates 1, Scope on cut width and general tolerances on straightness and rectangularity of metal plates of 12 mm or under in thickness which have been cut by plate shearing machines such as the gap shear and square shear. This Japanese In
5、dustrial Standard specifies the general dimensional tolerances Remarks: The applicable Standards to this Standard are given in the following: JIS B O111 Glossary of Terms for the Presswork Machinery JIS B 0621 JIS Z 8114 Definitions and Designations of Geometrical Deviations Glossary of Technical Dr
6、awing Terms 2, Definitions (4) For the purposes of this Standard definitions in JIS B 0111, JIS B 0621 and 8114 apply, and others are in accordance with the following: cut width cutting edge of a shear and its opposite side ( b of Fig. i). The distance between the side which has been cut by the cut
7、length mr (t of Fig. i). The length of the side which has been cut by the cutting edge Fig. 1 been cut Side which has been cut straightness The magnitude of deviation from the geometrically correct straight line at the portion of the side which has been cut being touched with the cutting edge (f of
8、Fig. 2). rectangularity magnitude of deviation of the portion of the short side which has been touched with the cutting edge from a vertical geometrical plane in respect to the datum shape body (f of Fig, 3). Taking the long side as the datum shape body, the In the case where the two sides are equal
9、 in length, any one side may also be taken as the datum shape body. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:16:00 MSTNo reproduction or networking permitted without license from
10、IHS -,-,- J I S B*04LO 91 4933606 0083365 6 S j 2 B 0410-1991 Fig, 2 Product . . . . ,Product Product Fig. 3 portion which has been touched with cutting edge Datum shape body 3. General Dimensional Tolerances on Cut Width The general dimensional tolerances on cut width shall be classified into two g
11、rades of grade A and grade B according to plate width divisions, respectively, and respective dimensional tolerances shall be in accordance with Table 1. Table 1. General Dimensional Tolerances on Cut Widths Unit: mm I .Divisions of plate thickness (t) tS1.6 1.6t3 3t56 6 t512 Division of basic dimen
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