A Cutter Orientation Modification Method for the Reduction of Non‐linearity Errors in Five‐Axis CNC Machining

Traditional metal-based manufacturing processes are being driven to multi-axis machining. Manufacturing time studies have proven that there are significant cycle time reductions using multi-axis CNC machining as compared to multi-fixture CNC machining. Four and five-axis machining requires the use of software to produce both required part geometry and the resulting tool paths. However, while the software and machine tool technology are present, engineers with the appropriate educational background are harder to find. The skills required to design, tool, program, and machine four and five-axis parts are part of few, if any, educational programs. The manufacturing engineering technology program at Arizona State University is actively addressing this shortfall. Educational materials have been developed, tested and employed in classes supporting simultaneous 4-axis machining utilizing a Haas VF2 and HRT210 4th axis rotary table. Similar materials for a Haas VF2 with TR160 5-axis trunnion, capable of simultaneous 5-axis machining, are being beta tested.

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Development Research of the End Mills Grinding Programming System Based on MATLAB

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.422.242 ◽

2013 ◽

Vol 422 ◽

pp. 242-246

Author(s):

Hong Jun Zhang ◽

Jian Guang Li ◽

Tian Wei Zhang

Keyword(s):

Simulation Software ◽

Cnc Machining ◽

Programming System ◽

Development Research ◽

Machining Simulation ◽

Nc Code ◽

Cnc Grinding ◽

End Mills ◽

Five Axis ◽

Grinding Simulation

Using MATLAB for development tools,we has developed a set of end mills CNC grinding programming system by analysis the end mills grinding craft ,research on cutter location trajectory calculation and post-processing technology. Meanwhile, build a five-axis tool grinder grinding simulation processing by VERICUT(a kind of CNC machining simulation software), through the edge grinding simulation , we confirm the cutter location trajectory and the NC code is errorless.

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On the Generation of Coordinated Motion of Five-Axis CNC/CMM Machines

Journal of Engineering for Industry ◽

10.1115/1.2899753 ◽

1992 ◽

Vol 114 (1) ◽

pp. 15-22 ◽

Cited By ~ 40

Author(s):

Jui-Jen Chou ◽

D. C. H. Yang

Keyword(s):

Machine Tool ◽

Cnc Machining ◽

Cad Model ◽

Coordinated Motion ◽

Geometrical Properties ◽

Time Dependent Domain ◽

Arbitrary Space ◽

Tool Motion ◽

And Control ◽

Five Axis

This paper presents an analytical study on the command generation for five-axis CNC machining or CMM measurement. In the integration of CAD and CAM, it is necessary to relate machine tool kinematics and control in a CAM process to the geometrical data in a CAD model. The data stored in a CAD model is usually static in nature and represented by unitless parameters. Yet, in machine tool motion and control, the data should be transformed into a time dependent domain. In this paper, a general theory on the conversion from desired paths to motion trajectory is analytically derived. The geometrical properties of a desired path, including position, tangent, and curvature are related to the kinematics of coordinated motion including feedrate, acceleration and jerk. As a result, the motion commands used as control references to track arbitrary space curves for five-axis computer-controlled machines can be generated in a rather straight-forward as well as systematic way.

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The Development of an APT Program Interpreter for 5-Axis Machining

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.482-484.2247 ◽

2012 ◽

Vol 482-484 ◽

pp. 2247-2252 ◽

Cited By ~ 2

Author(s):

Hsin Yu Cheng ◽

Jo Peng Tsai ◽

Yung Chou Kao

Keyword(s):

Research Result ◽

Value Added ◽

Working Process ◽

Nc Code ◽

Cad Cam ◽

Cutter Orientation ◽

Advanced Machining ◽

Five Axis ◽

Cam Software

As there are various machine configuration and frequent changes of cutter orientation in 5-axis machining, the standard NC codes are not inter-exchangeable among machines. This phenomenon induces a lot of cutting difficulties and machining problems such as the inconvenient working process for operators and very low cutting efficiency. At present, some advanced machine controllers already can accept the APT code besides NC code to increase the cutting flexibility. They also offer some advanced machining functions such as tool center point control and spatial compensations of tool, etc. By way of APT interpreting, the common controller can also implement these advanced functions. Besides, CAD/CAM software also supports APT post-processor to generate NC code for different machine configurations. This means the application of ATP program has played an important role in five-axis machining. However, although CAD/CAM software supports the interpretation of APT program as a core key technology of five-axis machining, the manufacturers of controller with advanced functions are unwilling to open their system. Up to now, there has been few related research papers published on this topic. In this paper, we proposed an APT interpretation method for five-axis machining. This method includes seven functional modules and related implementing procedures. A case study has been adopted to demonstrate the feasibility of the proposed method. The research result could be adopted as a reference to develop the value-added technology in 5-axis machine tool application for academy and industry.

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