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Profile Error-oriented Optimization of the Feed Direction and Posture of the End-effector in Robotic Free-form Milling by Xiang Qu; Min Wan; Chuan-Jing Shen; Wei-Hong Zhang is a Engineering article available to read on EtoBox.

What is Profile Error-oriented Optimization of the Feed Direction and Posture of the End-effector in Robotic Free-form Milling about?

In robotic milling of free-form surfaces, most existing studies tried to reduce the profile errors by optimizing the robot stiffness. However, the stiffness could not directly and rigorously reflect the milling performance to some content, especially, when the significant influence of feed direction on the profile error was ignored for robotic milling of free-form surfaces with large curvatures. In order to solve these problems, direct optimization of the feed directions and end-effector postures is theoretically formulated to seek the solution of a new profile error-oriented optimization model. This model characterizes the profile error in relation to the robot deformation caused by cutting forces, called force-induced profile error. The force-induced profile error is calculated and reduced at each cutter contact point on the free-form surface by comprehensively considering robot stiffness, free-form surface features, feed directions and cutting forces for generating feed direction and posture of the end-effector. The surface is partitioned into multiple sub-regions, in each of which the principle for determining the initial feed direction is proposed to ensure the smooth milling

Who reads Profile Error-oriented Optimization of the Feed Direction and Posture of the End-effector in Robotic Free-form Milling?

Author

Xiang Qu; Min Wan; Chuan-Jing Shen; Wei-Hong Zhang

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)