Proceedings of the Twelfth International Machine Tool Design and Research Conference

Front Matter....Pages i-vii
Introduction....Pages 1-1
Opening Address....Pages 2-3
Front Matter....Pages 5-5
Adaptive Control for Turning Operations....Pages 7-13
The On-Line Control of Cutting Conditions Using Direct Feedback....Pages 15-22
Front Matter....Pages 23-23
Developments in Automation for NC Lathes....Pages 25-30
The Modula Range of NC Machine Tools....Pages 31-40
Machine Tools-the Total Concept....Pages 41-48
Front Matter....Pages 49-49
On the Isostatic Compaction and Hydrostatic Extrusion of Iron Powder....Pages 51-59
Development of a New Precision Shearing Process: Opposed Dies Shearing Process....Pages 61-68
Hot Forging of Grey Cast Irons....Pages 69-78
Front Matter....Pages 79-79
Behaviour of the Horizontal Stiffness and the Micro-Sliding on the Bolted Joint Under the Normal Pre-Load....Pages 81-88
Calculating the Elastic and Plastic Components of Deflection of Plane Joints Formed from Machined Surfaces....Pages 89-95
Experimental Study on the Optimum Interface Pressure on a Bolted Joint Considering the Damping Capacity....Pages 97-105
Some Aspects of Wear on Disc Clutches Used in Machine Tools....Pages 107-112
Cutting Forces in Machining and Their Routine Measurement with Multi-Component Piezo-Electric Force Transducers....Pages 113-120
The Effect of Appearance Considerations on the Design of a Small NC Milling Machine....Pages 121-126
Front Matter....Pages 127-127
Stress Wave Fracturing of a Bar....Pages 129-139
Expanding Sheet Forming Method for Automobile Bumpers....Pages 141-145
The Design of a Press for Use in the Hydrostatic Extrusion Process....Pages 147-152
Die Performance in High-Energy Rate Forging....Pages 153-160
Front Matter....Pages 127-127
The Production of Tensile Test Specimens by an Economical Blanking Process and Its Feasibility for Practical Application....Pages 161-168
Bending of Thin-Walled Tubes by Combined External Mechanical Forces and Internal Fluid Pressure....Pages 169-175
Front Matter....Pages 177-177
Special Design Features of NC Contouring Machines....Pages 179-186
A Method of Calculation for Two-Way Flow-Control Valves Depending on Imposed Dynamic Performance....Pages 187-192
The Choice of Ballslideways for Machine Tools....Pages 193-197
The Improvement of the Accuracy of Electrohydraulic Cylinder Drives for NC Machine Tools by the Use of Active Feedback Compensation....Pages 199-205
An Economic Technique for the Improvement of the Stability of Hydraulic Cylinder Drives....Pages 207-216
The Specification and Performance of Electrohydraulic Motor Drives for Numerically Controlled Machine Tools....Pages 217-225
Front Matter....Pages 227-227
Objective Method for Determining Grinding Wheel Life....Pages 229-233
On the Rounding-Up Process in High-Production Internal Grinding Machines by Digital Computer Simulation....Pages 235-240
Geometrical Configurations for Stability In The Centreless Grinding Process....Pages 241-246
Electron Beam, The Multi-Role Tool for Modern Fabrication....Pages 247-257
Hydraulic Approach to Electrolyte Flow In Electrochemical Machining....Pages 259-263
Vertical Spindle Electrochemical Surface Grinding....Pages 265-270
Effect Of Surface Finish Produced During Ecm Upon The Fatigue Life Of Nimonic 80A....Pages 271-277
Front Matter....Pages 279-279
A Study of Identification of Dynamic Characteristics of Machine Tools by Means of Micro Tremor....Pages 281-288
Establishing Standard Cutting Conditions for Performance Testing Of Universal Metal Cutting Machine Tools....Pages 289-298
The Development Of A Dynamic Performance Test for Lathes....Pages 299-308
A New Hydraulic Vibrator....Pages 309-314
Inspection and Acceptance Tests for NC Machine Tools....Pages 315-317
Front Matter....Pages 279-279
Positioning Accuracy Of Numerically Controlled Machine Tools....Pages 319-324
Machine Tool Testing-A Practical Approach....Pages 325-331
Techniques for Testing Accuracy of NC Machine Tools....Pages 333-345
Front Matter....Pages 347-347
Metallurgical and Residual Stress Investigations of Explosively Welded Specimens....Pages 349-354
Forming Force Required for Tube-Forming....Pages 355-358
A Study of the Strain Histories And Drawing-In in a Pressed Steel Shell....Pages 359-365
The Quantitative Effect of Tool Geometry and Strain-Hardening on the Critical Punch Force in Cup Drawing....Pages 367-378
Determination of Tool-Life Equations by Step Turning Test....Pages 379-385
The Effect of Component Tolerance on Optimum Machining Conditions....Pages 387-396
Thermoelectric Characteristics of Carbides....Pages 397-400
Carbide Size and Distribution and Their Effect on the Performance of High-Speed Steel Tools....Pages 401-407
Front Matter....Pages 409-409
The Programmed Approach in Control Systems....Pages 411-420
A System for Direct Numerical Control of Machine Tool....Pages 421-428
Report on a Special DNC System....Pages 429-432
The Design and Development of a Numerical Control System Using a Small Digital Computer....Pages 433-438
Computer Approach to Dynamically Optimum Design of Machine Tool Structures....Pages 439-446
Efficiency and Accuracy of the Flexibility and Stiffness Methods for the Calculation of Beam-Like Redundant Structures....Pages 447-454
The Finite-Element Method Applied to the Deformation Analysis of Thin-Walled Columns....Pages 455-477
Front Matter....Pages 479-479
Tool-Life Equations and Machining Economics....Pages 481-493
Selection of Cutting Speeds Based on Uncertain Data....Pages 495-498
Front Matter....Pages 479-479
Use of the Scanning Electron Microscope to Study the Function of Manganese Sulphide Inclusions in Resulphurised Free-Machining Steels....Pages 499-506
The Use of a Cutting Force Spectrum for Tool Wear Compensation During Turning....Pages 507-515
Front Matter....Pages 517-526
Designing in Digital Space....Pages 527-527
A Computer-Aided Study of The Texture of the Working Surfaces of Grinding Wheels....Pages 529-534
Digital Computation of Surface Topography....Pages 535-541
Choosing Manufacturing Resources....Pages 543-550
Front Matter....Pages 551-554
The Analysis of Rotary Forging Investigations as an Aid to Design....Pages 527-527
Tool-Life Test in Clamp Shearing of Steel Bar and Wire....Pages 557-566
Elastic Stresses at Seals in Plain and Necked Open-Ended Cylinders Under Internal and External Pressures....Pages 567-572
Back Matter....Pages 573-578
....Pages 581-584