D001038 MACHINE TOOLS AND THEIR OPERATION - PART I

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DIGITEK NOTE - THIS HIGH RESOLUTION DIGITAL BOOK CONTAINS 360 PAGES AND IS SEARCHABLE AND PRINTABLE

PREFACE

The lathe and drilling machines rank high among the basic machines used in the shop. They date back many centuries and afford great opportunities for ingenuity in adapting them to a great variety of work.

While only a limited number of examples of the kind of work which can be done can be given in this volume, it has been our aim to show the fundamental principles involved in operating each machine. With these thoroughly understood it is easy to adapt the machines to a variety of uses.

Drilling is one of the most common of operations and yet many possibilities of greater efficiency of operation seem to have been overlooked. The shape of the cutting edges, clearance, lubrication, speed and feed are all important and should be studied carefully.

Hand screw machines or turret lathes and automatic screw machines are an outgrowth of the engine lathe. Their uses are gradually being extended and it is necessary for any thorough machinist at least to understand the principles involved. It has been our endeavor to make the operation of all these machines clearly in every way.

THE AUTHORS.
NEw YORK, N. Y.
June, 1922.