Related Resources: Manufacturing

Mechanical Workshop Technology

Manufacturing Engineering Processes

Mechanical Workshop Technology for Mechanical Engineering Technicians
207 pages

Open: Mechanical Workshop Technology for Mechanical Engineering Technicians
Premium Membership Minimum Required

Preface

Few people outside the engineering industry appreciate the contribution of modern technology in meeting the demands and needs of our present-day civilization. The study of the scientific principles underlying the art of engineering manufacture is the study of Workshop Technology, an all-important subject when one considers that it is skill in engineering manufacture that makes possible a standard of living beyond the wildest expectations of the previous generation.

It is the emergence of the machine tool within the last 150 years that has made possible the ability of the civilized world to provide the essentials of existence to its own rapidly growing population, and perhaps of greater importance, to make available modern techniques and processes to the underdeveloped territories of the world.

The need for efficient and well-trained mechanical engineering technicians is great. The stated aim of the scheme of work contained in the Mechanical Engineering Technicians' Course is to meet the needs of those who aspire to supervisory duties, shop and process control, drawing office practice, plant maintenance and other forms of responsibility.

TOC

1 Principles and Applications of Welding 1
Oxy-acetylene welding, flame cutting, arc welding, shielded arc welding, submerged-arc welding, argon arc welding spot welding, seam welding, stitch welding, projection welding, flash-butt welding, weld testing.

2 Measurement 25
End measuring bars, precision rollers, mechanical comparators , electrical comparators, optical comparators, toolmaker's microscope.

3 Inspection 54
Dimensional control, mass production, BS 4500, tolerance grades, fundamental deviation, selection of fits, clearance fits , transition fits, interference fits, preferred numbers, limit gauges, BS 1044, BS 969.

4 Cutting Tools 79
Cutting tool materials, high-carbon steel, high-speed steel, stellite, cemented carbides, ceramics, cutting speeds, tool failure, built-up edge, cratering, forces at tool point, lathe dynamometer, radial cutting, tangential cutting, negative rake cutting, cutter grinding.

5 The Center Lathe 99
Tool holding, work holding, toolmaker's buttons, faceplate balancing, use of centers, mandrels, screw cutting, multi start threads, cutting-tool angles, vertical boring machines duplex boring mill, vertical turret lathe.

6 Turret and Capstan Lathes 123
Turret lathes, capstan lathes, use of stops, work holding spindle speeds, knee turning tool holder, boring bars, extension arms, starting drill and holder, roller-steady turning tool holder, roller-steady ending tool holder, self-opening die head, collapsible tap, example of bar work, machining times.

7 Hole Production 147
Types of drilling machines, hole piercing, drill jigs, gang drilling, multi-head drilling, hole broaching, jig boring control of linear worktable movement, horizontal boring
, essential features of horizontal borer.

8 Milling Machines 167
Standard milling techniques, fixed-bed millers, duplex milling machines, rotary-table milling, up-cut milling, down-cut milling, negative-rake milling, form milling, universal milling machine, dividing head, simple indexing, angular indexing , compound indexing, differential indexing, spiral milling , cam milling.