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3D Tools Compensation Technology in (X, Y, Z, B, C) Style Five-Axis Linkage NC Manufacturing

100%

Quiang L. , Junxi B.

Machine Dynamics Problems

2003

tom Vol. 27, No. 4

29-39

The article analyzed tools compensation of five-axis CNC machines tools whose tool axis has two degrees, and also the feed rate because of tools compensation has been discussed. The results have been applied in the five-axis CNC machines system of sky co. Nanjing.

Cutting stability investigation on a complicated free surface machining

75%

Lin S. Y. , Chang R. W. , Chung C. T. , Chan C. K.

Journal of Achievements in Materials and Manufacturing Engineering

2008

tom Vol. 31, nr 2

531-539

Purpose: Both the results obtained previously relating to structure dynamics of a simultaneous five-axis movement machine tool and to the investigations on dynamic cutting behavior are further applied as a foundation to study the effect of the process parameters on the cutting stability in the process of a complicated free surface machining. Design/methodology/approach: In the paper cutting stability investigation on a complicated fee surface machining are described. Findings: The experimental data obtained from the cases with and without a real cutting process find that a test under a specified rotational speed can generate its own charcteristic 3-direction frequencies. The paper specially select the characteristic frequency with the most significant change on response amplitude to analyze. Practical implications: The investigation procedures and the results obtained may be used as a reference and guidance for the analysis of cutting stability in the five-axis machining of a complicated surface in industrially practical use. Originality/value: The results shown on frequency domain for identifying characteristic frequencies can be interpreted on time domain to observe amplitude variation respect to time and further understand its changing pattern under the cutting process.