標(biāo)題: Geometrical Dimensioning and Tolerancing for Design,Manufacturing and Inspection [打印本頁] 作者: easylife 時(shí)間: 2009-11-11 20:44 標(biāo)題: Geometrical Dimensioning and Tolerancing for Design,Manufacturing and Inspection [i=s] 本帖最后由 easylife 于 2010-1-15 13:00 編輯 [/i]( q; z9 }2 @. ?6 K( D% X8 m
. Q1 Z" p3 p* B. BGeometrical Dimensioning and Tolerancing for Design,Manufacturing and Inspection
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Preface- r6 }: G4 n5 p
Technical developments, leading to higher performance, higher efficiency, lower pollutions
, ^; K- G* E* ^and greater reliability, and the constraints imposed by economy and the need for
' f7 A, s# W9 x# Z5 O5 grationalization, greater cooperation with licensees and subcontractors, make it necessary
- i+ g2 h9 `( Kto have completely toleranced drawings suitable for the function, for manufacturing5 y8 G; L( j4 x* Y' Q
and inspection.
6 G: E+ I Q) p9 p( W5 K“Completely toleranced” means that the geometries (form, size, orientation and location)9 k y ]" V5 I. W3 Y* h
of geometrical elements of the workpiece are completely defined and toleranced.
6 R% m4 g% [* R. p5 b$ b# ^Nothing shall be left to the individual judgement of the manufacturer or inspector. Only
& l4 O Y1 y# g/ d8 wwith this approach can proper functioning be verified and the possibilities available for% W% U3 Y n" N. T4 g4 J3 r
economization and rationalization in manufacturing and inspection be fully utilized.
' J" H2 {; Z; T" f8 Z6 h& PThis book presents the state of the art regarding geometrical dimensioning and tolerancing.( ~# q6 g2 c# S" C2 W
It describes the international standardization in this field, which is laid down
& E0 p9 [: R% j6 b0 S" o# Jin ISO Standards. It indicates the deviations between the American Standard ASME
( S( H) R8 Z3 E, R5 XY14.5M, the former East European Standards and the ISO Standards. It describes the S' [7 u$ n/ x" n% S) ]( u
additional specifications laid down in the German Standards (DIN Standards). Possible) r4 m! E& |2 [1 s0 b5 z
further developments in the field of geometrical tolerancing are also pointed out.3 a6 K f- h ?. v$ f, G; k
What has to be regarded for manufacturing within the geometrical dimensioning and
8 d2 h8 {/ c% w0 E' h: H) ~tolerances is explained.
' e- `# f" A* M o6 qPrinciples for the inspection of geometrical deviations are given, together with a" L$ Q( e& s$ k o/ h
basis for tolerancing suitable for inspection.
/ {9 b7 Q$ e7 k) w( k; B6 e$ \ ?Examples for tolerancing appropriate to various functional requirements, a guide for
8 l& s0 Z) G( ^ Pgeometrical tolerancing, are described.0 ~) l" j' X5 f" S2 T
This book may serve as an introduction to geometrical dimensioning and tolerancing
0 ?( }/ A- b' b4 lfor students, and may also help practitioners in the fields of design, manufacturing( H' \. J4 l0 V4 u4 D3 q
and inspection.9 P2 | i0 L* h
The author has used his experiences gathered during the elaboration of the ISO
- U. d% @1 h8 B4 l$ a8 aStandards and during his lectures and discussions on geometrical dimensioning and tolerancing5 h! g. l* i7 T0 ~) K+ T
in industry and education. However, proposals for improvements are appreciated' s! R) h! A* K) }$ T7 n7 P) p
and should be directed to the publisher.% L5 M5 i) i8 w: y
The book represents the author’s understanding of the various standards and is written
; k! i" M% ]( t' y0 Zfor educational purposes. In cases of dispute, the original standards have to be
- x# \' r8 n0 y6 s% G. Q- fconsidered. The functional cases of geometrical requirements vary over a wide range.
7 p. s4 O: Z6 n. _% P k6 P* t9 [Therefore, before application in practice, it should be checked whether the presentation
* T; P' j9 u6 J& G' e# i( Ain the book fits the particular purpose in the practical case.2 ^5 U+ _& ^" W* a3 ?
Standardization is a dynamic and continuous process. The standards follow the% H4 T0 v9 b7 \
development in engineering. Future changes in standardization may make it necessary2 l2 l% z# x1 s* I& \
to update some content of this book.
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Georg Henzold was manager of the department for standardization of a manufacturer/ {0 a# ?5 G/ Q7 F
of power plant machinery. He is chairman of the committee dealing with the standardization
/ O- t- `- ?6 C3 w+ g! Fin the field of geometrical dimensioning and tolerancing in the German
4 |$ R8 r: E6 |" A+ nStandardization Institute (DIN), and he was the former chairman of the pertinent
" \+ E% M) s( A! j% }2 hEuropean Committee for Standardization (CEN). He is a long-time delegate in the pertinent
3 G$ U3 w" p* scommittees of the International Standardization Organization (ISO).- L' c: q' R2 Z8 {' M
* f' M' |* h- a/ e, i, A, RGeorg Henzold作者: 大頭小成 時(shí)間: 2009-11-11 21:39
不錯(cuò)的手冊!就是讀起來有點(diǎn)吃力!作者: easylife 時(shí)間: 2009-11-11 22:59