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เนื้อหาย่อ : The tool designer is the link that con department with the nnects the work of the the practical knowled edge of the expert mechanic inventive genius. His job is is that of selecting the machines and engineering production job ob. He ne nic, coupled with leeds all developing the tools that will produce piece parts with a high degr ree of accurac cy and speed. The unit o on the akill of the tool designer. cost of piece o parts produced depends very largely protitably be invested in a tool. He makes the decision as to the amount of money that can p He must invent and dovelcp devices for holding work, al create tools to perform nd must a the Sonoee Hase ingenious tool desig gner will red duce, to a minimum, A skillful and , the number of binatio operations necessary to complete a a piece ce part. It is this com- hanic, the skilled draftsman, and the inventor, that makes the tool designer modern producti t one of the "key" " men of ction manufacturing. In one se e sense this text is a comp Tool Ma spanion n text to our popular book held of operation faking by the san me author. It covers the same e general ions, but in this s new book the design n of fixtures and tools is stressed, rather th han the methods of making them. This book has the general characteristics of all our "how-to-do-it" books: it is w written in such h a simple I valuable information and help and direct style that the beginning t a tool designer will find on simple jobs, and th the expert will find many sug ggestions to help in the ever increasing numbe are of the text er of probl blems his job The outstanding featur presents. ct is the great tnumber ber (over 425) of excellent and valuable ill illustrations. These have all been taken from the prod duction field. In most t cases they are actual tool designs, a and therefore contain a wealth of information for the expert as as well as the apprentice. The draw wings have are presented illustrate rate principles that find many and been selected to cove rer a wide field, a and the typical designs that applications in ot other tool designs. A thorough study ion in the t y of these drawings, a real and practical education in tool designing. , apart from I the discusgic text, will constitute The author of this work has had extensive practical experience a in designing tools. As president of a company en ngaged in marketing toola to supply metal-man nufacturing conce erns, he has b had the opportunity of keeping in touch with the most up-to-date te practices in this field of modern production. The at author wris ishes to thanks, the valuable assistance rec owledge, with various scompanies and from individual friends conne eceived from ected with thee hese metal-manufao- room staff of t He also is indebted to Mrs. F. Swarts for r editorial work on the manus nuscript, and to Mr. A. E. Burke of the Ameri ican Technical Soc e and the d drafting ciety for wo ork on the illus- .It is felt that this book will fll the needs of ambitious beginners in the field of Tool Design and be of practical value in helping experienced men solve their design problems. e cufting on of the expert metar Ivaried acknowl turing plants. trations.