Arc-intersect method for -axis tool paths on a 5-axis machine

Gray, Paul J.; Ismail, F.; Bedi, Sanjeev

doi:10.1016/j.ijmachtools.2006.01.023

Cited by 26 publications

(4 citation statements)

References 20 publications

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“…The DWL400 laser direct writing system [113] was proposed by Fraunhofer Institute Laser Technik to make the surface of the substrate and the photoetching objective always vertical by synchronously cooperating with the rotation of the optical platform, so as to realize the real-time centering and focusing operation, and then complete the direct writing of the graphics. Gray et al [114] studied the five-axis laser galvanometer scanning system to realize two-dimensional milling by two galvanometer shafts, two-dimensional milling by three mechanical shafts and two galvanometer shafts and three-dimensional milling by five mechanical shafts and two galvanometer shafts. Diaci et al [115] reported a laser marking system with a "3 + 2" structure, and integrated a continuous laser scanning monitoring system to achieve the etching of small-scale curved metal surfaces.…”

Section: Review Of Laser Scribing Machinementioning

confidence: 99%

Research Status and Prospect of Laser Scribing Process and Equipment for Chemical Milling Parts in Aviation and Aerospace

et al. 2022

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Laser scribing in chemical milling is an important process which can effectively improve the precision and efficiency of chemical milling, and is of great significance to improve the thrust–weight ratio and manufacturing efficiency of aviation and aerospace parts. According to the scribing requirements in chemical milling for aviation and aerospace parts, the process and mechanism of laser scribing were studied and the influence of different process parameters for the quality of laser scribing was analyzed. Based on the review of related research literature, the laser scribing process, the ablation mechanism and technology of different materials and the selective laser removal process for “laser–coating–substrate” are summarized and discussed. Based on the requirements of high-precision laser scribing on complex surfaces, the current situation of laser scribing equipment is summarized. Finally, the practical challenges and key technical problems for the laser scribing process are summarized, and the application and development of laser scribing in aerospace manufacturing are prospected.

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Section: Review Of Laser Scribing Machinementioning

confidence: 99%

Research Status and Prospect of Laser Scribing Process and Equipment for Chemical Milling Parts in Aviation and Aerospace

et al. 2022

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“…In terms of the planning of the feasible direction of the tool, Zhu Limin et al [8][9] modified the rake angle of the tool at the same time, and also modified the side angle of the tool to a certain extent, to ensure the local optimal matching of the tool and the workpiece, which not only improved the machining process efficiency and guarantee the machining accuracy. The rolling ball method [10] [11] and the arc length intersection method [12] [13] proposed by Gray et al solved the phenomenon of local interference and over-cutting in the machining of flat and circular cutters, thereby improving the surface quality of the workpiece. To further improve the smoothing of the tool direction, Ming-Che [14] and Ji [15] used spline interpolation to plan a smooth and interference-free tool axis vector.…”

Section: Introductionmentioning

confidence: 99%

Optimization of tool axis vector for mirror milling of thin-walled parts based on kinematic constraints

Qian

Zhang

Gao

et al. 2022

Int J Adv Manuf Technol

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In the mirror milling of thin-walled parts, the machining path and the change of the tool axis vector will affect the surface quality of the workpiece and the machining efficiency. The machined surface was discretized into point cloud data, and the surface was fitted. Based on the constraints of mirror milling, the tool location points, and machining paths were generated first. Then the tool location points in the space were projected onto the parameter plane to fit the spline curve. What's more, the position of the corresponding point on the fitting surface was obtained from the tool position point after fitting on the parameter plane and obtaining the tool axis vector. After obtaining the optimized tool position data, the tool axis vector was optimized based on kinematic constraints, precisely, the machine tool rotation axis needs to satisfy the constraints of the maximum angular velocity, maximum angular acceleration, and maximum angular jerk. Therefore, in the process of machining, due to the problems of angular velocity, angular acceleration, and angular jerk at certain tool positions exceeding the limit, feedrate for CNC machines was optimized first. Furthermore, the optimization target was established based on the minimum sum of the motion fluctuations of the rotary axis and the machining time. After that, the optimized machining path and tool axis vector were simulated and tested. Finally, the simulation and experimental results were determined through analysis, which proved the feasibility of the optimized model proposed in this paper. At the same time, the experimental measurement results also showed that the optimized machining path had been significantly improved in both quality and efficiency.

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“…A common solution to the interference problem is to adjust the tool orientation. Sturz method, [2][3][4][5][6] visibility and accessibility method, [7][8][9] principal-axis method (PAM), 10,11 and Arcintersect method (AIM) 12,13 are commonly adopted methods. Sturz method involves less calculation and is widely used in commercial software.…”

Section: Introductionmentioning

confidence: 99%

Collision-free planning algorithm of motion path for the robot belt grinding system

Jiewen

2018

International Journal of Advanced Robotic Systems

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Collision may occur during the grinding of a workpiece by a robot sand belt. To solve this problem, a collision-free planning algorithm for the robot motion path is developed based on the collision layer method. Collision-free planning of the robot motion path is studied, and a means to adjust the machining frame on the belt is determined (i.e. moving along the axis of the belt and rotating around the tangent line). The planning curve is rapidly found on the collision layer using neighborhood search and recursive methods, and the amount of collision detection is significantly reduced. The planning curve is transformed into the robot motion path. Simulation and experimentation show that the amount of collision detection required by the proposed algorithm is 3.86% less than that required by a method using a complete collision layer. Moreover, the robot grinds the workpiece without collision. The proposed method is simple, stable, and easy to implement and possesses a good engineering application value.

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Arc-intersect method for -axis tool paths on a 5-axis machine

Cited by 26 publications

References 20 publications

Research Status and Prospect of Laser Scribing Process and Equipment for Chemical Milling Parts in Aviation and Aerospace

Research Status and Prospect of Laser Scribing Process and Equipment for Chemical Milling Parts in Aviation and Aerospace

Optimization of tool axis vector for mirror milling of thin-walled parts based on kinematic constraints

Collision-free planning algorithm of motion path for the robot belt grinding system

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