Programming CNC Machines Using Computer-Aided Manufacturing Software

In the traditional sculpture surface machining process, the G01 code is still the mainstream trajectory. Furthermore, real-time feedrate scheduling and corner smooth algorithm in controller constitute the mainstream method to improve the machining process of short line G01 code in sculpture surface machining. However, the G01 code’s discontinuity and the limits of real-time calculation capacity hinder the use of high-speed machine tools and the accuracy of the machined part. In this article, a new method for sculpture surface machining that considers the advantages and disadvantages of both the computer-aided manufacturing software and the real-time controller is presented to promote the use of a continuous curve tool path. The method mainly transfers the computing-intensive feedrate scheduling and trajectory optimization algorithm in the real-time controller to the computer-aided manufacturing software. Furthermore, the computer-aided manufacturing software generates the machining data, which contain the geometry and feedrate information of the machining process. Finally, the real-time interpolator and the mathematical form of computer-aided manufacturing–generated data are designed simultaneously. In the method, the real-time controller can be designed as simple as possible to release more computing resources to the other real-time intelligent modules. The powerful computational capacity of the software guarantees the optimality of the machining process.

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Laser-Chemical 3-D Micromachining

MRS Proceedings ◽

10.1557/proc-282-165 ◽

1992 ◽

Vol 282 ◽

Author(s):

T. M. Bloomstein ◽

D. J. Ehrlich

Keyword(s):

Computer Aided Design ◽

Three Dimensional ◽

Solid Modeling ◽

Compression Molding ◽

Removal Rates ◽

Computer Aided Manufacturing ◽

Electrodischarge Machining ◽

Computer Aided ◽

Manufacturing Software ◽

Aided Design

ABSTRACTThree-dimensional parts are machined in silicon using laser-induced chlorine etching reactions. Structures are created directly from solid-modeling computer-aided-design/computer-aided-manufacturing software. Removal rates exceeding 2×104 and 105μm3/s, several orders of magnitude faster than electrodischarge machining methods, are achieved at 1-μm, and 15-μm x-y resolution, respectively. Laser-induced metallization of resulting structures as well as replication through compression molding have been demonstrated.

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SphinxCAM: Computer-Aided Manufacturing for Spherical Mechanisms

Volume 1B: 25th Biennial Mechanisms Conference ◽

10.1115/detc98/mech-5886 ◽

1998 ◽

Author(s):

John S. Ketchel ◽

Pierre M. Larochelle

Keyword(s):

Computer Aided Design ◽

Three Dimensional ◽

Computer Aided Manufacturing ◽

Cad Tools ◽

Spherical Mechanisms ◽

Software Packages ◽

Computer Aided ◽

Manufacturing Software ◽

Aided Design

Abstract In this paper we present SphinxCAM, a computer-aided manufacturing software for spherical four-bar mechanisms. The kinematics of spherical mechanisms are reviewed as they pertain to their manufacture. This is followed by a brief review of some of the current computer-aided design (CAD) software for spherical four-bar mechanisms, e.g. Sphinx, SphinxPC, and Isis. These software packages provide the three-dimensional visualization and computational capabilities necessary to design spherical four-bar mechanisms. However, to date no tools exist to aid in the manufacture of spherical mechanisms. SphinxCAM, when used with the CAD tools mentioned above, facilitates the design, visualization, and manufacture of spherical four-bar mechanisms.

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