Proceedings of the Seventeenth International Machine Tool Design and Research Conference: held in Birmingham 20th – 24th September, 1976

Front Matter....Pages I-XII
Front Matter....Pages 1-1
The Production of Spiral Bevel Gears by Computer Aided Manufacturing Techniques....Pages 3-10
The Computer Aided Design and Manufacture of Vehicle Lamps....Pages 11-17
Design for Numerically Controlled Manufacture of Patterns And Dies....Pages 19-26
Computer Aided Preform Design for Long Hot Forgings....Pages 27-36
Hardware and Software Requirements for Automation of a Petro-Forge Hammer....Pages 37-44
Front Matter....Pages 45-45
Memory Gives Simple NC a New Lease of Life....Pages 47-54
NC-Technique for Small Batches....Pages 55-59
Direct Digital Control for Turning Operations....Pages 61-66
Geometrical Adaptive Control in Profile Milling by CNC System....Pages 67-74
Computer Controlled Profile JIG Grinding....Pages 75-83
Adaptively Controlled Fully Automatic Balancing System....Pages 85-92
Improvement of Working Accuracy of a Machining Center by Computer Control Compensation....Pages 93-99
Front Matter....Pages 101-101
A Comprehensive Literature Survey of Chip Control in the Turning Process....Pages 103-116
Characteristics of Cutting Force in Plain Milling Operation Using a Helical Cutter....Pages 117-124
Applications of a Rotary Turning Tool....Pages 125-131
A Study of Bandsaw Blade Wear and Its Effects on Cutting Rates and Economics....Pages 133-140
An Approach to On-Line Measurement of Tool Wear by Spectrum Analysis....Pages 141-148
Tool Requirements for Interrupted Cutting....Pages 149-154
Front Matter....Pages 155-155
A Study of a Newly-Developed Precision Thread Grinding Machine....Pages 157-163
Performance of Silicon Carbide Wheels in Grinding Tool Steels....Pages 165-169
Front Matter....Pages 155-155
Characterisation of Grinding Wheel Topography and Wear....Pages 171-180
Grinding Fluid, Wheel Wear and Surface Generation....Pages 181-187
Applications of Surface Integrity Measurements in Grinding....Pages 189-192
The Wear of Crushers and Diamond Roll Formers....Pages 193-201
Mechanics of Chip Formation for Conditions Appropriate to Grinding....Pages 203-210
Front Matter....Pages 211-211
A Study of the Modal Shapes of Machine Tool Column Structures....Pages 213-221
Computer Study of a Milling Machine....Pages 223-231
Torsional Vibration of Machine Tool Drives Using Speed Change Gears....Pages 233-240
Acoustic Design for a Layout of a Manufacturing Area....Pages 241-247
Machinery Noise: The Users’ Viewpoint....Pages 249-256
Research on Noise Generated in Impact Forming Machines at the University of Birmingham, 1971–1976....Pages 257-273
Front Matter....Pages 275-275
A Large Increase in Cutting Rate by Using a Dielectric under Static Pressure....Pages 277-282
Dynamic Effects of the Dielectric Fluid in Electro-Discharge Machining....Pages 283-290
An Analysis of Debris from the Electro-Discharge Machining Process and the Conclusions to be Drawn about the Physical Processes of Metal Removal....Pages 291-311
The Performance of Single-Electrode Fine-Hole Drilling by Electro-Discharge Machining....Pages 313-320
Some Practical and Theoretical Aspects of a Modified ECM Process with Stationary Electrodes....Pages 321-328
New Ultra-High Speed Photographing System with Giant-Pulse Ruby Laser....Pages 329-334
Laser Machining and Fabrication-A Review....Pages 335-339
Front Matter....Pages 341-341
The Accuracy of Forging Load Estimation in Drop Forging....Pages 343-353
The Oxidation of Steel at High Temperatures and Its Effect on Die Surface Temperatures in Hot Forging....Pages 355-361
Front Matter....Pages 341-341
Load and ‘Rise’; Their Dependence on Flash Geometry and Machine Characteristics in Drop Forging....Pages 363-369
Hot Workability of Mechanically Alloyed In-738....Pages 371-378
Thermoplastic Gears Formed in the Solid-State....Pages 379-385
Front Matter....Pages 387-387
On Load Pressure Requirements During the Cold Extrusion of Composite Materials....Pages 389-397
Assessment of Lubrication for the Cold Extrusion of Steel....Pages 401-409
On the Pressure Required for Extrusion of Shaped Aluminium Sections....Pages 411-421
Investigations into Continuous Extrusion....Pages 423-428
Strain and Pressure Distribution in Extrusion Containers....Pages 429-433
A Class of Slip-Line Field Solutions for Unsymmetrical Extrusion and Some Experimental Results....Pages 435-444
Flow Through Conical Converging Dies with Hydrodynamic Lubrication Treated as an Adiabatic Process....Pages 445-451
Front Matter....Pages 453-453
A Study of Clamps for Semi-Continuous Hydrostatic Extrusion....Pages 455-465
Further Investigation of the Process of Cold Plug Drawing of Implosively Welded Bi-Metallic Tubes....Pages 467-473
Determination of the Mean Coefficient of Friction in the Direct Drawing of Section Rods From Round Bars....Pages 475-481
A Comparison of Slow Speed, High Speed and Multi-Blow Compaction in Ferrous Powders....Pages 483-488
Material Behaviour and Limits of Cracking in Powder Preform Forging....Pages 489-496
The Powder Metallurgy, Dynamic and Quasistatic, of Stainless Steel Scrap Turnings....Pages 497-505
Front Matter....Pages 507-507
An Investigation into Power Assisted Metal Spinning....Pages 509-520
Spin-Forging of Sheet Metal Cones Having Various Cone Angles and an Upper Bound Estimate for the Tangential Component Force Exerted at the Workpiece-Roller Interface....Pages 521-529
An Experimental Study of the Spin-Forging of Sheet Metal Cones Using A Mandrel of Constant Cone Angle....Pages 531-537
Observations on the Mode of Deformation During Aluminium Slab Rolling....Pages 539-548
Front Matter....Pages 507-507
Tube Cropping with a Floating Mandrel....Pages 549-556
Front Matter....Pages 557-557
Surface Roughness of Electrohydraulically Formed Tubes....Pages 559-564
Explosive Forming and Punching T316 Stainless Steel Tubes, A Case History....Pages 565-569
Design of Tooling for Compressing a Cylindrical Billet with Consideration to Tolerance Specifications on the Billet Diameter....Pages 571-578
Instability Modes in Deep-Drawing....Pages 579-586
A Plasto-Hydrodynamic Analysis of High Speed Disc Forging....Pages 587-595
The Effect of Friction in Simple Upsetting of Cylindrical Billets of Elastic-Plastic and Elastic-Strain Hardening Material: A Numerical Technique....Pages 597-604
Front Matter....Pages 605-605
A Survey of Some Physical Defects Arising in Metal Working Processes....Pages 607-621
An Investigation into the Effect of the Geometric Factors on the Closure of Holes During Flat Rolling....Pages 623-632
A Study of the Closure of Cavities in Swing Forging....Pages 633-645
Recent Japanese Work on Peen-Forming....Pages 647-651
Some Factors in the Shot-Peening and Peen-Forming Processes....Pages 653-659
Multiple Impact Erosion of Ductile Metals by Spherical Particles....Pages 661-668
Back Matter....Pages 669-671