標(biāo)題: Geometrical Dimensioning and Tolerancing for Design,Manufacturing and Inspection [打印本頁(yè)] 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]% n$ B! a! L) {, _0 ? i
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Geometrical Dimensioning and Tolerancing for Design,Manufacturing and Inspection$ O' D" Y! v! W- w4 u; x9 C: |) K
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X& W. r$ K5 n0 w4 N: c$ {: ^7 ~" p4 PPreface: y+ B: w( t" k
Technical developments, leading to higher performance, higher efficiency, lower pollutions
7 |" g* M5 a% t0 m7 ?& h% O- o4 Cand greater reliability, and the constraints imposed by economy and the need for% | T7 K9 g0 z
rationalization, greater cooperation with licensees and subcontractors, make it necessary
/ u' {! b" | t$ [9 I8 z3 _' ?1 ]to have completely toleranced drawings suitable for the function, for manufacturing7 j# |+ I) n, G, X
and inspection.
$ k# G. y6 x& L y6 h( D; }! c“Completely toleranced” means that the geometries (form, size, orientation and location)
' X7 G2 k% k2 eof geometrical elements of the workpiece are completely defined and toleranced.
1 w3 `5 |$ b3 \$ \5 V n% lNothing shall be left to the individual judgement of the manufacturer or inspector. Only
6 c5 I- W' d6 a. }with this approach can proper functioning be verified and the possibilities available for
, C( r4 |, I6 V, v& v# ~: Deconomization and rationalization in manufacturing and inspection be fully utilized., P7 h8 X% Z+ b2 S8 Q# K5 ?% i
This book presents the state of the art regarding geometrical dimensioning and tolerancing.
, Z% V3 P& v+ D0 H; q( `. KIt describes the international standardization in this field, which is laid down; `; X" Z r+ s4 J9 R, m" Q" O
in ISO Standards. It indicates the deviations between the American Standard ASME
, I$ b# f# t" ~7 gY14.5M, the former East European Standards and the ISO Standards. It describes the
3 B: w8 H6 e6 p; f7 Aadditional specifications laid down in the German Standards (DIN Standards). Possible
; ?9 g5 ?: L2 o* W( a& n/ L) M8 Y8 ]further developments in the field of geometrical tolerancing are also pointed out.
9 u0 |0 A$ w6 nWhat has to be regarded for manufacturing within the geometrical dimensioning and4 P( V+ I" z j1 p1 f
tolerances is explained.
/ X9 U. T7 S+ \+ APrinciples for the inspection of geometrical deviations are given, together with a
/ {3 y& K" R7 l2 I3 tbasis for tolerancing suitable for inspection.4 M( ~/ p. x4 p1 D
Examples for tolerancing appropriate to various functional requirements, a guide for' i/ W/ A* n2 u3 O- u8 M
geometrical tolerancing, are described., b7 S4 O# o' N
This book may serve as an introduction to geometrical dimensioning and tolerancing
/ }( d/ e7 G0 P2 p; R& Sfor students, and may also help practitioners in the fields of design, manufacturing
7 Y( G( B0 c! O3 f% K1 s, Q' sand inspection.
+ }$ z4 Q6 L6 }The author has used his experiences gathered during the elaboration of the ISO
) _8 y' D- Z" Z$ k" kStandards and during his lectures and discussions on geometrical dimensioning and tolerancing
- o" S* t( G" G! o$ Y6 Iin industry and education. However, proposals for improvements are appreciated
u( z; U) J7 ?3 o6 Q. {and should be directed to the publisher.
6 U, G+ K% |+ L4 Q) W- D, HThe book represents the author’s understanding of the various standards and is written
+ J* ?4 U+ b6 ~" X! a3 Q. bfor educational purposes. In cases of dispute, the original standards have to be
0 [7 w0 W& {0 w8 iconsidered. The functional cases of geometrical requirements vary over a wide range.
/ L2 W5 a p$ \! `6 D4 iTherefore, before application in practice, it should be checked whether the presentation
- n$ x. [/ c5 Jin the book fits the particular purpose in the practical case.
* W( l% K7 @ G& v% i# e! x) v: v) ~Standardization is a dynamic and continuous process. The standards follow the, Z& q* V* z0 l$ D
development in engineering. Future changes in standardization may make it necessary
B5 H j1 \8 X' Eto update some content of this book. ~" t# T2 {1 Q! ]! n2 z
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5 V! b" F! _2 @' VGeorg Henzold was manager of the department for standardization of a manufacturer
, { h. ~2 ]7 F: \( G }0 @of power plant machinery. He is chairman of the committee dealing with the standardization
8 V/ R1 y% \) A' Z% t# [/ Iin the field of geometrical dimensioning and tolerancing in the German5 `( \: V n' V8 Q- f% ]( g P
Standardization Institute (DIN), and he was the former chairman of the pertinent) n y2 @7 z2 B# j# C9 [" `
European Committee for Standardization (CEN). He is a long-time delegate in the pertinent0 [9 P' G; w& G0 S( E0 G! P
committees of the International Standardization Organization (ISO).
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Georg Henzold作者: 大頭小成 時(shí)間: 2009-11-11 21:39
不錯(cuò)的手冊(cè)!就是讀起來(lái)有點(diǎn)吃力!作者: easylife 時(shí)間: 2009-11-11 22:59
不錯(cuò)的手冊(cè)!就是讀起來(lái)有點(diǎn)吃力!7 z5 D3 z5 r' Z& p0 W; a) K
大頭小成 發(fā)表于 2009-11-11 21:39