New geographies of advanced manufacturing: the case of machine tools

2015 ◽  
pp. 217-228
Author(s):  
Ronald V. Kalafsky
Keyword(s):  
Machine Tools ◽  
Advanced Manufacturing

Proposal of a concept of future oriented machine tools for advanced manufacturing systems

2004 ◽  
Vol 42 (17) ◽  
pp. 3657-3673 ◽  
Author(s):  
Hirohisa Narita * ◽  
Keiichi Shirase ◽  
Eiji Arai ◽  
Keiichi Nakamoto ◽  
Lian-Yi Chen ◽  
...  
Keyword(s):  
Machine Tools ◽  
Manufacturing Systems ◽  
Advanced Manufacturing

scholarly journals Estimation of Position and Size of a Contaminant in Aluminum Casting Using a Thin-Film Magnetic Sensor

Micromachines ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 127
Author(s):  
Tomoo Nakai
Keyword(s):  
Machine Tools ◽  
Nondestructive Inspection ◽  
Inspection System ◽  
Manufacturing Processes ◽  
Prototype System ◽  
Advanced Manufacturing ◽  
Size Estimation ◽  
Aluminum Casting ◽  
Conductive Material ◽  
System A

Advanced manufacturing processes require an in-line full inspection system. A nondestructive inspection system able to detect a contaminant such as tool chipping was utilized for the purpose of detecting a defective product as well as damaged machine tools used to fabricate the product. In a previous study, a system able to detect magnetic tool steel chipping in conductive material such as aluminum was developed and tested. In this study, a method of position and size estimation for magnetic chipping was investigated and is described. An experimental confirmation of the proposed method was also carried out using an actual prototype system.

Benchmarking of Advanced Manufacturing Machines Based on Fuzzy-TOPSIS Method

2017 ◽  
pp. 309-350 ◽  
Author(s):  
Anoop Kumar Sahu ◽  
Atul Kumar Sahu ◽  
Nitin Kumar Sahu
Keyword(s):  
Machine Tool ◽  
Machine Tools ◽  
Metal Removal ◽  
Global Market ◽  
Advanced Manufacturing ◽  
Cnc Machine Tool ◽  
Hypothetical Case ◽  
Cnc Machine ◽  
Case Research ◽  
Algorithmic Technique

The evaluation of the most appropriate Computer Numerical Control (CNC) machine tool is found foremost issue for sustaining the advanced manufacturing production units at competitive global market place. In last years, many evaluation parameter/ criteria/ issues (i.e. Cost [C], Tool Length [TL], Tool Diameter [TD], Metal Removal Rate [MRR], X-Y-Z-Axis Movement of Tool [AMT], etc.) carried out into account besides productivity, precision, accuracy, reliability etc prior to purchasing/electing CNC machine tools amongst preferred alternatives. This chapter exhibited a hypothetical case research pertaining to election of CNC machine tool under the qualitative parameter/criteria/issues excluding quantitative, where, subjective (qualitative) criteria are considered beside objective (quantitative) criteria and complexity to elect the best CNC machine tool is solved via subjective assessments of expert's panel also called the group decision making. In present research, TOPSIS algorithmic technique conjunction with Trapezoidal Fuzzy Number set (TFNs) is explored for appraising and benchmarking the preferable CNC machine tool options/ alternatives. Finally, a hypothetical case research is carried out to check the validity of proposed algorithmic technique for proposed module and exhibit the path for benchmarking alternative machine tools. The preferences orders are carried out in accordance with descending value of the ‘collective index'. Higher value of ‘collective index' reflects higher degree of performance.

A new modularization method of heavy-duty machine tool for green remanufacturing

2018 ◽  
Vol 232 (23) ◽  
pp. 4237-4254 ◽  
Author(s):  
Qiang Cheng ◽  
Yiliang Guo ◽  
Zhifeng Liu ◽  
Guojun Zhang ◽  
Peihua Gu
Keyword(s):  
Machine Tool ◽  
Machine Tools ◽  
Clustering Algorithm ◽  
Design Stage ◽  
Design Parameters ◽  
Advanced Manufacturing ◽  
Heavy Duty ◽  
Atomic Theory ◽  
Structure Domain ◽  
The Ideal

The green remanufacturing constitutes a type of recycling form that adapts to ecological and economic requirements and an important part of the advanced manufacturing technology. In order to improve the green remanufacturing capacity of heavy-duty machine tools, in this paper a heavy-duty machine tool module division method for green remanufacturing was proposed. The main lines were based on the four design domains of axiomatic design and innovatively extended to the remanufacturing domain. In the design stage, the process of remanufacturing was considered. The modular clustering algorithm based on atomic theory was employed, which was associated with the correlation and similarity between the design parameters in the structure domain and the remanufacturing domain, for the ideal modules of heavy-duty machine tools to be discovered. Finally, a heavy-duty gantry milling machine is used as an example to verify the validity of the proposed method.

scholarly journals Study of Concepts of Parallel Kinematics Machines for Advanced Manufacturing

10.14311/710 ◽  
2005 ◽  
Vol 45 (3) ◽  
Author(s):  
M. Valášek ◽  
V. Bauma ◽  
Z. Šika
Keyword(s):  
Metal Forming ◽  
Machine Tools ◽  
Advanced Manufacturing ◽  
Redundant Actuation ◽  
Parallel Kinematics ◽  
New Concepts ◽  
Parallel Kinematics Machines ◽  
Redundantly Actuated ◽  
Five Axis ◽  
New Machine

This paper deals with possible new concepts for machine tools based on parallel kinematics for advanced manufacturing. Parallel kinematics machines (PKM) enable the mechanical properties of manufacturing machines to be improved. This has been proven by several new machine tool concepts. However, this potential can be and must be increased by applying the principle of redundant actuation. This paper deals with the extension of the concepts of redundantly actuated parallel kinematics structures for five-sided five-axis machine tools and for a free-forming sheet metal forming machine. The design principles of previous successful PKMs are summarized and new concepts are proposed. The most important requirement criteria are summarized. The proposed concepts are qualitatively and initially quantitatively evaluated according to these criteria. 

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.

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