14-06-12 12:57 PM #1
Chia sẻ Ebook_GD & T for Mechanical Design
Ebook đầy đủ nhất về dung sai trong thiết kế và chế tạo máy. Nếu các bạn đang băn khoăn về tài liệu chuẩn, thì đây chính là tài liệu giải đáp được mọi thắc mắc về dung sai kích thước và hình dáng,..cho các bạn trong quá trình thiết kế sản phẩm cơ khí.
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This book is written primarily for the learner who is new to the subject of
geometric dimensioning and tolerancing (GD&T). The primary purpose of this
book is to teach the graphic language of GD&T in a way that the learner can
understand and use it in practical applications. It is intended as a textbook
to be used in colleges and universities and as a training manual for corporate
training programs that teach engineering, design, drafting, manufacturing, and
quality professionals. This book is also appropriate for a self-study course.
The material in this book is written in accordance with the latest revision
of the geometric dimensioning and tolerancing standard, ASME Y14.5M-1994.
GD&T is a graphic language. To facilitate understanding, there is at least one
drawing for each concept discussed. Drawings in this text are for illustration
purposes only. In order to avoid confusion, only the concepts being discussed
are completely toleranced. All of the drawings in this book are dimensioned
and toleranced with the inch system of measurement because most drawings
produced in the United States are dimensioned with this system. You should
be skilled at reading engineering drawings.
The discussion of each control starts with a definition, and continues with how
the control is specified, interpreted, and inspected. There is a review at the end
of each chapter to emphasize key concepts and to serve as a self-test. This book
is logically ordered so that it can be used as a reference text.
A Note to the Learner
To optimize the learning process, preview the chapter objectives, the subtitles,
the drawing captions, and the summary. Next, review the chapter once again
focusing attention on the drawings and at the same time formulating questions
about the material. Finally, read the chapter completely, searching for answers
to the questions.
Comprehending new information from the printed page is only part of the
learning process. Retaining it in long-term memory is just as important.
To optimize the learning process an to drive the information into long-term
memory, review all new information at the end of the day; review it again the
next day, the next week, and the next month. Review is more than just look-ing at the information. Review includes rereading the material, speaking it out
loud, or writing it. Some learners learn best with their eyes, others with their
ears, and still others learn best by doing. Everyone learns differently, and some
students may learn best by doing a combination of these activities or all three.
Learners can experiment to determine their own best method of learning.
A Note to the Instructor
An instructor’s guide is available. The instructor’s guide includes teaching
strategies, midterm examinations, a final examination, and all of the answers.
Also, this book is organized in such a way that the instructor can select ap-propriate material for a more abbreviated course. This text can also be used as
supplementary material for other courses, such as mechanical engineering, tool
design, drafting, machining practices, and inspection. Using this text and the
instructor’s guide will greatly facilitate the administration of a course in GD&T.
Gene R. Cogorno
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