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Experimental Research on Machining Performance of Parallel Machine Tool

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Abstract:

The machining accuracy and the surface roughness of workpieces machined by the PKM named BJ-04-02(A) are evaluated by machining experiments in this paper. The machining accuracy includes that of size, shape and position. Size includes the diameter and length. Shape accuracy includes straightness, roundness and cylindricity. Position accuracy includes perpendicularity, parallelism, inclination and concentricity. The experiment results show that the surface roughness and the straightness basically meet the demand of JB/T8771.7-1998, but other accuracy indexes are not consistent well with the mechanical standard. However, the machining accuracy becomes bad when machining tool is far away from the center of the workspace.

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Info:

Periodical:

Key Engineering Materials (Volumes 375-376)

Pages:

672-676

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.375-376.672

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Online since:

March 2008

Authors:

Hai Bing Wu, Dun Wen Zuo, Yuan Wei Liu

Keywords:

Machining Accuracy, Machining Performance, Parallel Kinematics Machine Tool

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] Academic Institution of Electromechanical Devices Designing in Harbin Institute of Technology: Manual of Operating and Maintenance of Parallel Machine Tool (Harbin Institute of Technology, China 2004).

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[2] G.Z. Yang: Experiment Instructor of Trilinear Coordinates Measuring (College of Mechanical & Electrical Engineering, Nanjing University of Aeronautics and Astronautics, China 2002).

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[3] S. Zhang and U. Heisel: Parallel Kinematics Machine Tool (Engineering Industry Publications, China 2003).

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