Proceedings of the Nineteenth International Machine Tool Design and Research Conference : held in Manchester, 13th - 15th September, 1978

Front Matter....Pages i-xiv Front Matter....Pages 1-1 Development and Present Level of Numerical Controls....Pages 3-12 Principle and Examples of a Modular Multiprocessor NC System....Pages 13-17 Software for a Computer Numerical Control System Designed for Adaptive Control Research....Pages 19-26 A Microprocessor controller to Provide Low Cost Numerical Control....Pages 27-35 Front Matter....Pages 37-37 Printed Circuit Motor Feed Drives for a C.N.C. Lathe....Pages 39-45 Feed Drive System on Large NC Machine Tools....Pages 47-54 Computer Aided Design of Closed Loop Controlled Electrical Feed Drives....Pages 55-59 Safety Aspects in Design NC Turning Machines....Pages 61-67 Front Matter....Pages 69-69 An Open Loop C.N.C. Lathe with Optimised Turning Parameters....Pages 71-78 Stand-Alone Interactive Computer Systems for NC Tape Preparation....Pages 79-86 Spam: A Software Package Aiding the Manufacturing with NC Machine Tools....Pages 87-93 Front Matter....Pages 95-95 Low Cost Externally Pressurized Air-Bearings....Pages 97-105 Performance Characteristics of Hydrodynamic Journal Bearings with Rolling Pads....Pages 107-113 The Friction Characteristics and the Sliding Stability of Machine Tool Slideways which Employ PTFE-Metal Composite Material....Pages 115-123 The Prediction of Plate-Deflection and Radial Gripping Force for a Three Jaw Diaphragm Chuck....Pages 125-130 The Measurement of Gripping Force and Slip Torque of Components Held by an Expanded Mandrel....Pages 131-135 Face Drivers as a Modern Gripping Tool Operational Limits — Design and Performance....Pages 137-144 Front Matter....Pages 145-145 Design Conception of Hierarchical Modular Construction — Manufacturing Different Kinds of Machine Tools by Using Common Modules....Pages 147-153 The Elastic Behaviour of Mechanical Press Machines....Pages 155-162 CAD/CAM System for Roll Pass Design....Pages 163-170 Front Matter....Pages 145-145 Computer Aided Progressive Die Design....Pages 171-176 Front Matter....Pages 177-177 Validation of Audiometry in the Machine Tool Industry....Pages 179-183 The Accuracy of Noise Measurements on Machine Tools under Practical Conditions....Pages 185-190 A Method to Determine the Chatter Threshold....Pages 191-196 Optimum Design Procedure of Dynamic Damper for Machine Tool Structures....Pages 197-203 Front Matter....Pages 205-205 Smooth Edge Blanking and Piercing Using Conventional Presses....Pages 207-216 An experimental Study of the Double Cropping Process....Pages 217-224 Fine Bending With Counter Pressure....Pages 225-233 Experiments Into the Inertial Deformation of Clamped Rectangular, Square and Triangular Diaphragms....Pages 235-246 A Computer-Controlled Simulation of Hot Working by the Flat Compression Test on a High Speed Servo-Hydraulic Testing Machine....Pages 247-253 Punch Load Requirements in Warm Extrusion of Steel....Pages 255-263 Pressure Distribution and Friction in Extrusion Containers....Pages 265-269 Ribbon Winding of Metal Forming Dies with Different Elastic Properties of Core and Coil....Pages 271-278 Front Matter....Pages 279-279 CAPSY — A Dialogue System for Computer Aided Manufacturing Process Planning....Pages 281-288 A Computer Based Approach to Heuristic Scheduling....Pages 289-294 Computer AIDED Estimation of the Manufacturing Time for Turned Components....Pages 295-303 Front Matter....Pages 305-305 Estimation of Handling Cost Reductions Due to Layout Changes....Pages 307-313 Computer-Aided Material Handling in Flexible Manufacturing Cells....Pages 315-322 Digital Simulation of a Proposed Flexible Manufacturing System....Pages 323-329 Front Matter....Pages 331-331 Group Technology in UK Foundries....Pages 333-340 Front Matter....Pages 331-331 Is the NC Lathe the Most Economic Solution in Every Case?....Pages 341-351 Suitability Testing for Group Technology....Pages 353-364 A Management Tool for Predicting the Benefits to a Company of Group Technology....Pages 365-371 Front Matter....Pages 373-373 Continuous Measurement of Linear Motion Errors in Single Tool Cutting....Pages 375-381 Surface Roughness Measurement: Alternatives to the Stylus....Pages 383-390 A Study on the Effect of the Structural Vibration of a Machine Tool to the Circumferential Surface Roughness....Pages 391-398 Front Matter....Pages 399-399 What is a D.C.C. Inspection Machine?....Pages 401-406 The Use of a Microprocessor System for On-Line Quality Control in Manufacturing....Pages 407-414 Inaccuracies of Large Crankshafts: Causes, Measurement and Correction....Pages 415-422 Front Matter....Pages 423-423 The Application of Polycrystalline Compacts for Ferrous Machining....Pages 425-434 The Performance of Double Margin drills with Both Margins Cutting....Pages 435-441 The Assessment of Tool Life in Peripheral Milling....Pages 443-449 Novel Ways of Improving the Performance of Sawing Operations....Pages 453-460 Cutting Process of Plastics by Thin Knives....Pages 461-468 Improvement of Machinability and Grindability Induced by Means of Hydrogen Addition for the Material to be Cut and Grind....Pages 469-474 Front Matter....Pages 475-475 Circular Saw Vibration During Initial Engagement....Pages 477-480 Analysis and Application of the Electro-Magnetic Servo Damper....Pages 481-486 Optimum Vibration of Vibratory Feeder Loaded with Handling Parts....Pages 487-492 A New Load Cell Dynamometer for Measuring the Dynamic Cutting Coefficients....Pages 493-500 Front Matter....Pages 501-501 Fine Hole Drilling Using Electrochemical Machining....Pages 503-510 Front Matter....Pages 501-501 Further Effects of Process Parameters on the Incidence of Sparking in Electrochemical Machining....Pages 511-516 An Investigation on the Characteristics of Electrolytic Superfinishing....Pages 517-524 Residual Stresses in Workpieces After Peripheral Electrochemical Grinding....Pages 525-532 Electrochemical Effects on Shape Reproduction in Electrochemical Machining....Pages 533-540 Front Matter....Pages 541-541 Study on the High Speed Machining by EDM Using a Moving Coil Head Type Feed Control....Pages 543-549 The Effectiveness of Non-Rectangular Current-Pulse Forms in Electro-Discharge Machining....Pages 551-557 The Use of Acoustic Techniques for Monitoring and Controlling the E.D.M. Process....Pages 559-566 In-Process Optimization of Electro-Discharge Machining....Pages 567-574 Front Matter....Pages 575-575 Materials Processing with a High Power Laser....Pages 577-584 Machine Design and Thermal Aspects of the Friction Welding Process....Pages 585-590 Some Aspects of Material Hardening with Pulsed Laser Beams....Pages 591-596 Front Matter....Pages 597-597 Crush Dressing at Full Wheel Speed....Pages 599-606 The Influence of Diamond Geometry on the Stability of the Grinding Wheel Dressing Process....Pages 607-614 Wheel-Workpiece Conformity in form Grinding....Pages 615-621 Measurement of Visible Defects of a Ground Surface....Pages 623-628 A Study of the Heat Flux at Which Burn Occurs in Creep Feed Grinding....Pages 629-636 Metallurgical Effects Associated with Grinding....Pages 637-644 Grindability Study of CBN Wheels....Pages 645-653