scholarly journals Status-quo and Development of Cutting-tool Industry in Taiwan and China

2018 ◽  
Vol 11 (8) ◽  
pp. 90
Author(s):  
Jui-Lung Chen
Keyword(s):  
Machine Tools ◽  
Manufacturing Industry ◽  
High Efficiency ◽  
Cutting Tool ◽  
High Reliability ◽  
Cutting Tools ◽  
Academic Research ◽  
Policy Formulation ◽  
Expert Interview ◽  
Day By Day

Cutting plays a very important role in the manufacturing industry. The global industries of general machinery, automobile, aviation and aerospace, energy, medical, rail transit, mold and machine tools, etc. cannot do without cutting-tool equipment. Modern efficient cutting-tools focus on high accuracy, high efficiency, high reliability and customization. The type numbers and varieties of cutting-tools produced in Taiwan and China are becoming rich day by day. Therefore, this research explored the cutting-tool industry in Taiwan and China, and employed expert interview, five forces analysis, and PEST analysis to analyze the industry. This study offered conclusions based on the research results and provide specific, substantial business improvement, policy formulation and other related recommendations for relevant industry, government-related units and academic research.

Laser Interferometry Method of Stress Determination in Loaded Cutting Tool Parts

2014 ◽  
Vol 698 ◽  
pp. 537-541 ◽  
Author(s):  
R.Yu. Nekrasov ◽  
I.V. Soloviev ◽  
U.S. Putilova
Keyword(s):  
Machine Tools ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Laser Interferometry ◽  
High Strength ◽  
Integrated Approach ◽  
Automated Manufacturing ◽  
Working Capacity ◽  
Interferometry Method ◽  
Engineering Changes

A сontinuous growth of the intensity of metal working processes in mechanical engineering, changes in the structure, functionality and cost of technological equipment, an increasing use of high-strength materials which, as a rule, are characterized by low machinability, determine the necessity of an integrated approach both to the studies of the working capacity of cutting tools and to the control of machining conditions in order to achieve maximum technical and economic efficiency in operating automated manufacturing equipment and numerically controlled machine tools.

Computer Numerical Control Machine Tool and its Development Trend

2013 ◽  
Vol 774-776 ◽  
pp. 1458-1461
Author(s):  
Huan Yun Wang ◽  
Xiu Fen Liu
Keyword(s):  
Machine Tools ◽  
High Speed ◽  
Manufacturing Industry ◽  
High Reliability ◽  
Development Trend ◽  
Numerical Control ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Control Machine Tool ◽  
Comprehensive Level

CNC machine tools are the key equipment in the equipment manufacturing industry, which is related to the national economic construction and strategic position, and is an important symbol reflecting the national comprehensive level. This article analyzes the emergency and characteristics of CNC machine tools and its development trend such as high precision, high speed, high reliability, complex, intelligent, flexibility, integration and openness.

Solutions for Sustainable Machining

2016 ◽  
Author(s):  
Eckart Uhlmann ◽  
Bernd Peukert ◽  
Simon Thom ◽  
Lukas Prasol ◽  
Paul Fürstmann ◽  
...  
Keyword(s):  
Machine Tools ◽  
High Performance ◽  
Manufacturing Industry ◽  
Cutting Tool ◽  
The United States ◽  
Dry Machining ◽  
Machining Processes ◽  
Sustainable Machining ◽  
Sustainable Solutions ◽  
High Level

The manufacturing industry contributes over 19% to the world’s greenhouse gas emissions [1, 3] and 31% of the total energy consumed annually in the United States of America [2, 3]. There is therefore an increasing demand for sustainable solutions for the production technology industry. At the Technische Universitaet (TU) Berlin, Germany, a collaborative research center (CRC) is focusing on new solutions for the sustainable machining of high performance alloys, with developments from machine tools frames to cutting tool technology being undertaken. An innovative machine tool concept with a modular frame, which allows a high level of flexibility, has been developed. Furthermore, add-on upgrading systems for older machine tools, which are particularly relevant for developing countries, have been developed. These systems allow the accuracy of outdated machine tools to be increased, thus making the machine tools comparable to modern systems. Finally the cutting process also requires solutions for dry machining, as the use of cooling lubricant is environmentally damaging and a significant cost contributor in machining processes. Two solutions are being developed at the TU Berlin: an internally cooled cutting tool and a heating concept for ceramic tools to allow dry machining of high temperature alloys, for example for the aerospace industry.

scholarly journals Development of Optimal Design and Circular Broach Modular Design of Disc Cutters with the Development of a Parametric Model

2021 ◽  
pp. 15-21
Author(s):  
Ezekiel Oluwadamilare Akintona ◽  
Okeagu Fredrick ◽  
Nwufo Maduka Augustine
Keyword(s):  
Machine Tools ◽  
High Performance ◽  
Metal Cutting ◽  
Cutting Tool ◽  
Modular Design ◽  
Cutting Tools ◽  
Work Piece ◽  
Geometrical Parameters ◽  
Disc Cutters ◽  
High Level

Cutting tool is one of the most important instruments in production. It is used for machining of different components on machine tools. A material is cut into a chip to incur the desired work piece surface currently used in engineering various cutting tools. The directions of development of structures of metal cutting tools are: higher precision of dimensional and geometrical parameters, the use of new tool materials, cost, and quick. The cutting tools are not only affected by the design of machine, technology of manufacturing of products, but also impact the constructive forms of machine parts. The emergence of mechanical spine, thanks to the pull method. Spine broach can provide high-performance processing spine bore with the required accuracy. The development of heavy machine tools required the creation of new designs of large instruments. The use of mechanical automatic lines also required design tools with high dimensional stability capable of handling the items within the specified tolerance for a certain time. Instruments were developed in the process of renewing the cutting edge of the cutting tools with automatic adjustment; setting up tools on the size of the machine is a device for automatic replacement of worn tool in the process line of the Computer-Aided Manufacturing CAM of the cutting tool special requirements. Equipment must operate with high level efficiency, so to reduce the loss of time resetting of the need to minimal. A cutting tool requires knowledge of the theoretical foundations of design and calculation tools using CAD.

scholarly journals Cutting tool quality improvement: a case study of electronic parts manufacturer

2020 ◽  
Vol 2 (2) ◽  
pp. 30-36
Author(s):  
Thanatorn Chuenyindee ◽  
Piyaphong Yongphet ◽  
Phongchayont Srisuwan
Keyword(s):  
Statistical Methods ◽  
Manufacturing Industry ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Modern Manufacturing ◽  
Parts Manufacturing ◽  
Electronic Parts ◽  
The Cost

Electronic parts are an important part in the modern manufacturing industry. The purpose of this study was to enhance the quality of cutting tools in electronic parts manufacturing process by utilizing statistical methods. Through these approaches, it was found that the cost of precision boring blade (S2F0409R05F35R10PTD) was significantly decrease from 457 THB to 315 THB, this research can maintain the process capability value (Cpk) at the customer satisfaction level (rather than 1.5) and reduce production cost from 2,104,739 THB per year to 1,598,857 THB per year (5 months payback period). The proposed statistical methods approaches could also be applied to other electronic parts manufacturing industries worldwide.

Design of NC Machine Tools Self-Compensation System Based on FPGA

2013 ◽  
Vol 278-280 ◽  
pp. 1442-1446
Author(s):  
Chang Li Zha ◽  
Chen Ning Wang ◽  
Shi Jun Chen
Keyword(s):  
Machine Tools ◽  
High Efficiency ◽  
High Reliability ◽  
Compensation System ◽  
Machining Accuracy ◽  
Position Measurement ◽  
Nc Machine ◽  
Nc Machine Tools ◽  
Hardware Description ◽  
Programmable Devices

NC machine tools are generally thought to be with a high degree of automation, high precision, high reliability and high efficiency characteristics. But because of the inherent flaws of the machine mechanical structure, such as screw wear, assembly errors or repeated positioning error, the machining accuracy may reduce. Therefore, this paper describes a self-compensating system design FPGA-based NC machine tools. Using Programmable devices(FPGA) and Hardware description language(VHDL) to achieve self-compensation system controller development, Position measurement from absolute encoder in real-timing, Comprehensive building of NC machine tools since compensation control system.

Improvement of Thermal Deformation in a Newly Developed Steel CFRP Composite Ball Screw

2020 ◽  
Author(s):  
Hayato Yoshioka ◽  
Shunya Saito ◽  
Jun Kato ◽  
Hidenori Shinno ◽  
Shunsuke Goto ◽  
...  
Keyword(s):  
Machine Tools ◽  
High Speed ◽  
High Performance ◽  
Thermal Deformation ◽  
High Efficiency ◽  
Cooling System ◽  
Cutting Tools ◽  
Large Error ◽  
Ball Screw ◽  
Positioning Accuracy

Abstract Machine tools are required to realize high precision and high efficiency machining by various industry sectors. A machine tool has some driving systems to position cutting tools and workpieces, and hence driving units are required high speed and precision positioning. However, high speed feed motion causes thermal deformation due to generated heat at friction surfaces such as guideway, feed screw, and bearings, it deteriorates positioning accuracy of driving units. Thermal deformation of a ball screw is one of large error factors of lower positioning accuracy, and a cooling system for reducing thermal deformation is installed into machine tools. Since the cooling system needs additional cost and space in machining systems, a new method for minimizing thermal deformation is required. In this study, a new structure of ball screw is proposed in order to meet these requirements. A new ball screw which has a core pipe made of CFRP was developed. CFRP is one of composite materials which have light weight and low thermal expansion. This paper presents analysis results of a simplified FEM model of the ball screw and the basic experimental results of the developed ball screw. These results confirmed that the proposed ball screw was applied to high performance positioning system in machine tools.

Tilted Tool Axis Machining on 5-Axis Machine Tools

2007 ◽  
Vol 1 (2) ◽  
pp. 120-127 ◽  
Author(s):  
Makoto Yamada ◽  
◽  
Tsukasa Kondo ◽  
Fumiki Tanaka ◽  
Takeshi Kishinami ◽  
...  
Keyword(s):  
High Efficiency ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Cutting Conditions ◽  
Dynamic Force ◽  
High Quality ◽  
Machining Center ◽  
Tool Axis ◽  
Normal Vectors

High-efficiency machining and high-quality cutting are required in mold and die machining. To produce high-quality molds and dies, we require high rigidity for cutting tools and machining with effective cutting edges. We propose tilted tool axis machining, which involves indexing using 2-axis rotary motion and machining using 3-axis feed motion on a 5-axis machining center. To conduct tilted tool axis machining by ball end mill, we must know the tool attitude to ensure stable cutting and how to control the tool attitude to stable cutting conditions. Our main objective was to clarify the tool attitude ensuring stable cutting conditions and to develop automatic determination of the indexing angle for mold and die machining. We start by discussing machining experiments using a dynamic force dynamometer on a 5-axis machining center to analyze machining features using a tilted tool axis ball end cutting tool. We then determine machining evaluation from which the results of machining experiments are determine using a tilted tool axis ball end cutting tool. We propose calculation of optimum indexing angle candidates for machining surfaces using normal vectors of surfaces and cutting edges. We then show machinable area evaluation for the calculated indexing angle based on inverse offset method with a state flag. We then give examples demonstrating the effectiveness of our proposal.

The Chatterbox: A Device for Hearing Chatter as Sections are Cut

1973 ◽  
Vol 31 ◽  
pp. 360-361
Author(s):  
C. W. McCutchen ◽  
Lois W. Tice
Keyword(s):  
Machine Tools ◽  
Cutting Tool ◽  
Guerilla Warfare ◽  
History Of ◽  
Chatter Marks

Ultramicrotomists live in a state of guerilla warfare with chatter. This situation is likely to be permanent. We can infer this from the history of machine tools. If set the wrong way for the particular combination of cutting tool and material, most if not all machine tools will chatter.In more than 100 years since machine tools became common, no one has evolved a practical recipe that guarantees avoiding chatter. Rather than follow some single very conservative rule to avoid chatter in all cases, machinists detect it when it happens, and change conditions until it stops. This is possible because they have no trouble telling when their cutting tool is chattering. They can see chatter marks, and they can also hear a sometimes deafening noise.

Dynamics of the processes in metal machining

1998 ◽  
Vol 2 ◽  
pp. 115-122
Author(s):  
Donatas Švitra ◽  
Jolanta Janutėnienė
Keyword(s):  
High Frequency ◽  
Machine Tools ◽  
Metal Cutting ◽  
Cutting Tool ◽  
Low Frequency ◽  
Metal Cutting Machine ◽  
Cutting Machine ◽  
Metal Machining

In the practice of processing of metals by cutting it is necessary to overcome the vibration of the cutting tool, the processed detail and units of the machine tool. These vibrations in many cases are an obstacle to increase the productivity and quality of treatment of details on metal-cutting machine tools. Vibration at cutting of metals is a very diverse phenomenon due to both it’s nature and the form of oscillatory motion. The most general classification of vibrations at cutting is a division them into forced vibration and autovibrations. The most difficult to remove and poorly investigated are the autovibrations, i.e. vibrations arising at the absence of external periodic forces. The autovibrations, stipulated by the process of cutting on metalcutting machine are of two types: the low-frequency autovibrations and high-frequency autovibrations. When the low-frequency autovibration there appear, the cutting process ought to be terminated and the cause of the vibrations eliminated. Otherwise, there is a danger of a break of both machine and tool. In the case of high-frequency vibration the machine operates apparently quiently, but the processed surface feature small-sized roughness. The frequency of autovibrations can reach 5000 Hz and more.

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