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]6 O6 n9 A* y+ j: d( Y* m1 L* O
5 s4 V; N6 e Q# x) \9 _Geometrical Dimensioning and Tolerancing for Design,Manufacturing and Inspection" h2 O. K& n9 L/ ?% H' x2 d) a; K" Z
8 q' p" d% Z/ R: x7 `' Z# U8 Z C5 l9 M/ T' d* L. G) h: s8 q0 K7 O' B# R0 ~7 V, ~3 F) D" I4 U# s[attach]153788[/attach]- E# w$ \$ w( o, f
( N1 m0 r# x, m$ A: z+ m- J" N B
+ y" {* O) H: F( PPreface& T m) u! R" x u' ~
Technical developments, leading to higher performance, higher efficiency, lower pollutions
* x4 p% {; U9 V+ D. x% m: n" p0 \and greater reliability, and the constraints imposed by economy and the need for
% R' @/ r2 f- l6 [- ]; m1 W: erationalization, greater cooperation with licensees and subcontractors, make it necessary
_8 v' R% v& ^3 Mto have completely toleranced drawings suitable for the function, for manufacturing
, _( t( Y& f- h" Tand inspection./ w# G6 R* J; X' g5 O8 A
“Completely toleranced” means that the geometries (form, size, orientation and location)2 k* Z+ A9 L. ^* i1 P' z( y6 v
of geometrical elements of the workpiece are completely defined and toleranced.
V7 Y/ k( g" G2 Y; k* CNothing shall be left to the individual judgement of the manufacturer or inspector. Only9 ?6 b# C! d& Z0 f$ Q
with this approach can proper functioning be verified and the possibilities available for
, f5 l, Q4 M+ _+ q" x7 p5 beconomization and rationalization in manufacturing and inspection be fully utilized.( N* I0 Y- x. e$ T
This book presents the state of the art regarding geometrical dimensioning and tolerancing.
# m4 I9 Y- _) @! U" ZIt describes the international standardization in this field, which is laid down
: W8 q4 \$ a2 `8 P, Q# @in ISO Standards. It indicates the deviations between the American Standard ASME
) g* ]. R8 x; A: J% Y; P' _2 _Y14.5M, the former East European Standards and the ISO Standards. It describes the% k. D* n) m r5 I$ }) M
additional specifications laid down in the German Standards (DIN Standards). Possible
( {' p* Y9 {* b2 w/ E( s" Z2 ^further developments in the field of geometrical tolerancing are also pointed out.
4 j; z0 n4 t3 BWhat has to be regarded for manufacturing within the geometrical dimensioning and
0 \9 o0 w- ?. _( ~4 htolerances is explained.* P3 N5 g4 P1 d8 W" U; B; s" e
Principles for the inspection of geometrical deviations are given, together with a2 c' K" h2 N+ i( G5 i/ I
basis for tolerancing suitable for inspection.
% O) y; m5 @, ~8 jExamples for tolerancing appropriate to various functional requirements, a guide for8 @, k' Q" v$ [1 S, b- f. \
geometrical tolerancing, are described.
3 g: u9 r: _" E$ RThis book may serve as an introduction to geometrical dimensioning and tolerancing: {5 F5 y4 k. \: V
for students, and may also help practitioners in the fields of design, manufacturing
# k- a0 q: ]; R" q: ]; e% o) o5 Xand inspection.. V; Z5 Q1 Y) r4 J7 `
The author has used his experiences gathered during the elaboration of the ISO: q+ z* j [" ]) L
Standards and during his lectures and discussions on geometrical dimensioning and tolerancing
7 Y; M" q4 }0 |# j2 Kin industry and education. However, proposals for improvements are appreciated0 g( Q1 q L8 I: v b& Y& k6 O
and should be directed to the publisher.
" v# m2 k# J; l! O8 u, k3 Q7 HThe book represents the author’s understanding of the various standards and is written- D/ c& z. b( Q6 l& C+ w
for educational purposes. In cases of dispute, the original standards have to be# s) A8 T* t- ]# Q
considered. The functional cases of geometrical requirements vary over a wide range.
1 N1 s% ?3 i! Y" j) u6 MTherefore, before application in practice, it should be checked whether the presentation+ w% p, A, z% X3 Y( a
in the book fits the particular purpose in the practical case.2 m$ H' X$ }/ I* S! }; |
Standardization is a dynamic and continuous process. The standards follow the6 j2 i. o6 G# k: y; ^2 m4 `( t
development in engineering. Future changes in standardization may make it necessary
2 r5 c2 `$ q. j0 Qto update some content of this book.( n. D1 T/ s6 Z8 M6 X! [: E
xi
& i0 s/ H' w. bGeorg Henzold was manager of the department for standardization of a manufacturer
! ]1 u/ x/ C5 M: M/ s/ `of power plant machinery. He is chairman of the committee dealing with the standardization, m& m6 a* a9 v2 S* } }
in the field of geometrical dimensioning and tolerancing in the German7 u$ f. w7 l' m7 J$ K4 K. f j
Standardization Institute (DIN), and he was the former chairman of the pertinent
@; e5 }5 ]. BEuropean Committee for Standardization (CEN). He is a long-time delegate in the pertinent) z9 C6 S/ m$ V2 w3 S! F
committees of the International Standardization Organization (ISO).' @- M1 J8 r8 @' m
% n+ ^7 l4 f' E: N) q9 K! ?8 WGeorg 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!+ U& W7 t0 A# U
大頭小成 發(fā)表于 2009-11-11 21:39