A New Compensation Method for Multi-Choice of a Five-Axis Machine with a Tilting Head

Postprocess capable of converting the cutter location data to machine control data is an important interface between the NC programming design and manufacture.Due to the fact that current research on multi-axis postprocess methods mostly deals with machine tool configurations whose linear and rotational movements are orthogonal, an efficient postprocess algorithm for the five-axis machine with a tilting head is presented in this paper.DMU 80P which is a five-axis machine with a tilting head is selected as an example.Its mechanism model is proposed in this paper according to the mechanism theory.The kinematics model is established using coordinate transformation,and the solution of this model is discussed.Based on these,a window-based post-processor with multi-choice function was developed by VS2010 language.Through the verification by the commercial solid cutting software VERICUT,the feasibility of the algorithm proposed is demonstrated.At last,a real impeller cutting experiment has been conducted and the result further verifies the correctness of the algorithm.

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Geometric deviation reduction method for interpolated toolpath in five-axis flank milling of the S-shaped test piece

Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture ◽

10.1177/0954405419889235 ◽

2019 ◽

Vol 234 (5) ◽

pp. 910-919 ◽

Cited By ~ 2

Author(s):

Liping Wang ◽

Weitao Li ◽

Hao Si ◽

Xing Yuan ◽

Yuzhe Liu

Keyword(s):

Test Piece ◽

Reduction Method ◽

Linear Interpolation ◽

Machining Process ◽

Flank Milling ◽

Machined Surface ◽

Location Data ◽

Geometric Deviation ◽

Five Axis ◽

Cutter Location Data

Geometric deviation, defined as the distance between the designed surface and the machined surface, is an important component of machining errors in five-axis flank milling of the S-shaped test piece. Since the interpolated toolpath in practical machining process is the approximation of the theoretical toolpath, the geometric deviation caused by the interpolated toolpath appears. To overcome this problem, a novel geometric deviation reduction method is suggested in this study. First, the features of the S-shaped test piece are analyzed. Second, the theoretical toolpath is generated according to the designed surface and the cutter location data is obtained by discretizing the theoretical toolpath. The linear interpolation of the cutter location data is carried out to obtain the interpolated toolpath. Then, the geometric deviation is modeled by calculating the Hausdorff distance between the tool axis trajectory surface based on the interpolated toolpath and the offset surface of the designed surface. Finally, the geometric deviation is reduced by optimizing the cutter location data without inserting more cutter location points. The machining experiment is conducted to verify the effectiveness of the proposed method. The experimental results agree with the simulation results, and both of them indicate the geometric deviation on the machined surface reduces after optimization.

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Generation of collision-free cutter location data in five-axis milling using the potential energy method

The International Journal of Advanced Manufacturing Technology ◽

10.1007/bf01176295 ◽

1997 ◽

Vol 13 (8) ◽

pp. 523-529 ◽

Cited By ~ 13

Author(s):

Inhaeng Cho ◽

Kunwoo Lee ◽

Jongwon Kim

Keyword(s):

Potential Energy ◽

Energy Method ◽

Location Data ◽

Five Axis ◽

Potential Energy Method ◽

Cutter Location Data

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Solid Modeling and Machining Approach of the Impeller Based on Five-Axis Machine Tool

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.189-193.801 ◽

2011 ◽

Vol 189-193 ◽

pp. 801-804 ◽

Cited By ~ 1

Author(s):

Yu Xia Zhao ◽

Jie Jian Di ◽

De Wen Gao

Keyword(s):

Cutting Tool ◽

Cnc Machining ◽

Centrifugal Impeller ◽

Software Simulation ◽

Location Data ◽

Geometry Model ◽

The Core ◽

Engine Components ◽

Five Axis ◽

Cutter Location Data

An impeller is the core of aviation engine components, the processing quality has a decisive impact on the performance of the engine. An impeller is also one of the most important basic components of centrifugal compressor. When a three-axis CNC machining centre is used for producing an impeller, great difficulties, i.e. collisions between the cutting tool and the impeller, can occur. As the surface is normally twisted in design to achieve the required performance, it can cause overcut and collision problems during machining. To solve these problems, an integrated five-axis machining approach for a centrifugal impeller by combining related machining technologies is developed. As a result, Cutter Location data based on the geometry model of blade and hub of the impeller are generated. Finally, the Cutter Location data is verified through software simulation. The results prove that the machining methodology adopted is useful and efficient.

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Generation of Five-Axis Cutter Paths for a Ball-End Cutter With Global Interference Checking

Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education ◽

10.1115/98-gt-549 ◽

1998 ◽

Author(s):

Der Min Tsay ◽

Wei Feng Yan

Keyword(s):

End Mill ◽

Ball End Mill ◽

Location Data ◽

Tool Paths ◽

Contact Points ◽

Surface Data ◽

Five Axis ◽

Interference Checking ◽

Cutter Location Data ◽

Projected Distance

A simple, yet useful procedure is developed to generate tool paths with global interference checking for five-axis machining of turbomachinery components with complex geometries. Based on the projected distance between the surface data and the cutter-axis of a cylindrical ball-end mill, interference between the surface of a workpiece and the cutter can be detected. Given the cutter contact points of the surface and the cutter’s size, it can produce the cutter location data without incurring interference through relatively rotating and tilting the workpiece. Applications of the developed approach to five-axis machining of centrifugal compressor impellers with thirteen and fifteen blades are illustrated to demonstrate the usefulness and reliability of the procedure.

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A Five-Axis CNC Machine Postprocessor Based on Inverse Kinematics Transformation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.622-623.525 ◽

2012 ◽

Vol 622-623 ◽

pp. 525-530

Author(s):

Tran Duc Tang

Keyword(s):

Inverse Kinematics ◽

Visual Basic ◽

Cnc Machine ◽

Location Data ◽

Nc Program ◽

Basic Language ◽

Nc Data ◽

Visual Basic Language ◽

Five Axis ◽

Cutter Location Data

This paper presents a postprocessor for five-axis milling machine that capable of converting CL (cutter location) data to machine control data (NC program). The proposed postprocessor method is based on inverse kinematics transformation and postprocessor module is programmed in Visual Basic language. The Deckel Maho DMU 50 eVoluion five-axis machine with two rotary axes (B and C) on the table is modeled and verified in software VERICUT® to validate the NC data generated by proposed postprocessor.

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Design of a Cutting Point Control Algorithm for Five-Axis Machining

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.249-250.702 ◽

2012 ◽

Vol 249-250 ◽

pp. 702-706

Author(s):

Chen Hua She ◽

Tsung Hua Yang

Keyword(s):

Control Algorithm ◽

Cutting Tools ◽

Simulation Software ◽

Precision Manufacturing ◽

Nc Code ◽

Location Data ◽

Point Control ◽

Five Axis ◽

Cutting Point ◽

Cutter Location Data

Five-axis machine tool with two additional rotary axes has been widely used in defense, aerospace and the consumer industries, and is an important process of precision manufacturing. Traditional five-axis program depends on the machine tool’s configuration and machining setting. This leads to inconvenience of reprogramming five-axis NC code for the end users. This paper proposes a cutting point control algorithm for five-axis machining. Although the commercial advanced controllers provide this function, they are very expensive and restricted to export. The developed algorithm can be embedded to the PC-based controller so that the specific cutter location data can be transformed and employed easily for different cutting tools. Verification using VERICUT solid cutting simulation software demonstrated the correctness of the generated cutter location data.

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Generation of Five-Axis Cutter Paths for Turbomachinery Components

Journal of Engineering for Gas Turbines and Power ◽

10.1115/1.1340639 ◽

1999 ◽

Vol 123 (1) ◽

pp. 50-56 ◽

Cited By ~ 7

Author(s):

D. M. Tsay ◽

W. F. Yan ◽

H. C. Ho

Keyword(s):

End Mill ◽

Ball End Mill ◽

Location Data ◽

Tool Paths ◽

Contact Points ◽

Surface Data ◽

Five Axis ◽

Interference Checking ◽

Cutter Location Data ◽

Projected Distance

A simple, yet useful algorithm is developed to generate tool paths with global interference checking for five-axis point milling of turbomachinery components. Based on the projected distance between the surface data and the cutter-axis of a cylindrical ball-end mill, interference between the surface of a workpiece and the cutter can be detected. Given the cutter contact points of the surface and the cutter’s size, it can produce the cutter location data without incurring interference through relatively rotating and tilting the workpiece. Applications of the developed procedure to five-axis machining of centrifugal compressor impellers with 13 and 15 blades are illustrated to demonstrate the usefulness and reliability of the approach.

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Analysis and Control of Multi-Choice and Non-Linear Error for a Spindle-Rotating Machine

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.197.114 ◽

2012 ◽

Vol 197 ◽

pp. 114-119

Author(s):

Chun Hui Yin ◽

Huan Jing Jing ◽

Fei Ren

Keyword(s):

Coordinate Transformation ◽

Error Compensation ◽

Efficient Algorithms ◽

Movement Model ◽

Mechanism Model ◽

Rotating Machine ◽

Non Linear ◽

Cutting Experiment ◽

And Control ◽

Compensation Function

The mechanism model of a spindle-rotating machine is proposed in this paper according to the mechanism theory.The movement model is established using coordinate transformation,and the solving of this model is discussed.Based on these,efficient algorithms for multi-choice and non-linear errors have been presented.A dedicated post-processor with non-linear error compensation function was developed by VS2010 language.A circle frame cutting experiment was conducted and the result showed that the algorithms was correct.

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NURBS Curve Fitting Based on Arc Centripetal Parameterization for Tool Path Generation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.274.121 ◽

2013 ◽

Vol 274 ◽

pp. 121-123 ◽

Cited By ~ 1

Author(s):

Cun Guang Yu

Keyword(s):

Curve Fitting ◽

Tool Path ◽

Nc Machining ◽

Tool Path Generation ◽

Sculptured Surface ◽

Arc Length ◽

Tool Path Planning ◽

Nurbs Curve ◽

Location Data ◽

Cutter Location Data

NURBS curve fitting is used for tool path planning for sculptured surface NC machining. The cutter location data is parameterized by equal chord arc length parameterization, and Centripetal Parameterization is improved. It is not only more approach to curves nature equation in theory, but also closer to the interpolated curves in actual fitting. It is directly to reflect the curvature of curves of cutter location in NC machining.

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