Addenda to the discussion on Mr. J.D. Scaife's paper on “Machine tool development with special reference to the use of carbide tools and hydraulic mechanisms”

1933 ◽  
Vol 12 (11) ◽  
pp. 522
Author(s):  
J.D. Scaife
Keyword(s):  
Machine Tool ◽  
Special Reference ◽  
Tool Development

Software Technology Integrated Smart Machine Tool Development for Mold Machining

2018 ◽  
Vol 35 (2) ◽  
pp. 121-128
Author(s):  
De-Yu Park ◽  
Kyu-Yeong Yum ◽  
Hyun-Yeong Cho ◽  
Du-Jin Kim ◽  
Jae-Keun Park ◽  
...  
Keyword(s):  
Machine Tool ◽  
Tool Development ◽  
Software Technology ◽  
Smart Machine

Dynamic Characteristics of an Oil Hydraulic Constant Speed Drive

1968 ◽  
Vol 183 (1) ◽  
pp. 683-694 ◽  
Author(s):  
A. J. Healey ◽  
J. D. Stringer
Keyword(s):  
Dynamic Response ◽  
Machine Tool ◽  
Special Reference ◽  
Dynamic Characteristics ◽  
Hydraulic System ◽  
Control Valve ◽  
Analogue Computer ◽  
Flow Control Valve ◽  
Stick Slip ◽  
Speed Regulation

Experimental and analytical studies are made of an oil hydraulic system which uses a pressure compensated flow control valve for speed regulation. The study concerns dynamic response with special reference to the effects on the system of the sudden application of a retarding force to the mass it is moving. Equations of a typical ‘meter-out’ type of system are first developed and solved. The consequent predictions are then compared with experimental results from an apparatus which simulated a machine tool application. The advantages of incorporating a restrictor in the inlet (supply) line are then examined both experimentally and analytically using an analogue computer. The results show that the mathematical models give satisfactory predictions of the maximum changes of velocity and pressure occurring during the transients. The restrictor reduced the magnitudes of these transient changes and also eliminated ‘stick-slip’ oscillations at low speed. It is concluded that the methods of analysis outlined in this paper could be used to advantage in the design of practical systems.

Emerging Virtual Machine Tools

2003 ◽  
Author(s):  
Michael F. Zaeh ◽  
Georg M. W. Wuensch ◽  
Clemens Poernbacher ◽  
Michael S. O. Ehrenstrasser
Keyword(s):  
Machine Tool ◽  
Concurrent Engineering ◽  
Machine Tools ◽  
User Requirements ◽  
Tool Development ◽  
Hardware In The Loop ◽  
Simulation Environment ◽  
Control Software ◽  
Development Costs ◽  
Strategy Change

In machine tool development, control software engineering has reached a cost proportion of over fifty percent of the total development costs. Highly customized user requirements and the compulsion to shorten development cycles accompany the need to master risen quality requirements of the mechatronic product machine tool. This enforces a strategy change from prevailing sequential engineering to concurrent engineering. The paper proposes a Hardware-in-the-Loop simulation environment as an interdisciplinary discussion platform to virtually implement, evaluate and optimize a machine tool throughout all stages of development.

Mini Special Issue on Machine Tool Structure and its Design Optimization

2015 ◽  
Vol 9 (6) ◽  
pp. 679-679
Author(s):  
Hidenori Shinno
Keyword(s):  
Machine Tool ◽  
Design Optimization ◽  
Machine Tools ◽  
Rapid Change ◽  
Tool Development ◽  
Special Issue ◽  
Design Concepts ◽  
Machine Tool Structure ◽  
Dynamic Rigidity ◽  
Manufacturing Environments

Demands for machine tools that are highly accurate, productive, flexible, and compact have been growing in the aerospace, automotive, energy, factory automation, and other industries. Rationally meeting these severe, complex requirements has led to numerous research and development activities involving machine tools. Few machine tool technologies have been established, however, despite the machine tool industry’s long history. Within the next several years, the rapid change and enlargement of the This mini special issue on machine tool structure and its design optimization features 8 papers classified under the following themes: - Enhancing high static and dynamic rigidity - Minimizing and optimizing thermal deformation - Proposing new structural analysis methods for machine tools - Selecting and applying new structural materials to the machinetool structure - Applying new structural designs and mechanisms These papers present new design concepts, design methods, and innovative examples in machine tool development. I believe that successfully combining these core technologies will provide machine tool compatible with future manufacturing environments. In closing, I would like to express my sincere gratitude to the authors and reviewers for their interesting and dedicated contributions to this special issue.

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