Off-line feed rate scheduling for reduction of machining...

Details Off-line feed rate scheduling for reduction of machining... Off-line feed rate scheduling for reduction of machining...

2006-05-23

2006-05-23

Picard, Leo (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C700S029000, C700S046000, C700S052000, C703S002000

Reexamination Certificate

active

07050883

ABSTRACT:
An off-line feed rate scheduling method of a CNC machining process includes selecting a constraint variable and inputting a reference value related to the constraint variable; estimating a cutting configuration where a maximum constraint variable value (CVV) occurs through ME Z-map modeling; receiving the estimated cutting configuration and estimating a specific rotation angle (φs) where the maximum constraint variable value occurs through constraint variable modeling; calculating a feed rate that satisfies the reference value of the constraint variable at the estimated specific rotation angle; and applying the calculated feed rate to the NC code. Cutting force or machined surface error may be selected as a constraint variable depending on machining conditions.

REFERENCES:
patent: 4423481 (1983-12-01), Reid-Green et al.
patent: 4888707 (1989-12-01), Shimada
patent: 5876155 (1999-03-01), Link et al.
“Modeling the Surface Swept by a Generalized Cutter for NC Verification,” by Yun C. Chung et al.,Computer-Aided Design, vol. 30, No. 8, pp. 587-594, 1998.

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