scholarly journals A New Optimal Method of Tool Path Generation for Slow Tool Servo Turning of Complex Surface

2020 ◽  
Vol 20 (6) ◽  
pp. 733-747
Author(s):  
Hangyan Guo ◽  
Min Kang ◽  
Wei Zhou ◽  
Hengtai Niu ◽  
Bingwei Song
Keyword(s):  
Tool Path ◽  
Complex Surface ◽  
Tool Path Generation ◽  
Path Generation ◽  
Optimal Method ◽  
Slow Tool Servo

Tool path optimal design for slow tool servo turning of complex optical surface

2016 ◽  
Vol 231 (5) ◽  
pp. 825-837 ◽  
Author(s):  
Xu Chen ◽  
Min Kang ◽  
Xingsheng Wang ◽  
Muhammad Hassan ◽  
Jun Yang
Keyword(s):  
Optimal Design ◽  
Tool Path ◽  
Tool Path Generation ◽  
Interpolation Error ◽  
Machining Accuracy ◽  
Calculation Error ◽  
Path Generation ◽  
Optical Surface ◽  
Toric Surface ◽  
Slow Tool Servo

In order to increase the machining accuracy of slow tool servo turning of complex optical surface, the optimal design for tool path was studied. A comprehensive tool path generation strategy was proposed to optimize the tool path for machining complex surfaces. A new algorithm was designed for tool nose radius compensation which had less calculation error. Hermite segment interpolation was analyzed based on integrated multi-axes controller, and a new interpolation method referred to as triangle rotary method was put forward and was compared with the area method and three-point method. The machining simulation indicated that the triangle rotary method was significant in error reduction. The interpolation error of toric surface was reduced to 0.0015 µm from 0.06 µm and sinusoidal array surface’s interpolation error decreases to 0.37 µm from 1.5 µm. Finally, a toric surface was machined using optimum tool path generation method to evaluate the proposed tool path generation method.

Study on the Multi-Axis Machining Technology of Helical Gear

2012 ◽  
Vol 522 ◽  
pp. 187-191
Author(s):  
Jia Xi Du ◽  
Hong Shen
Keyword(s):  
Machine Tool ◽  
Collision Detection ◽  
Tool Path ◽  
Helical Gear ◽  
Tool Path Generation ◽  
Machining Process ◽  
Path Generation ◽  
Improve Performance ◽  
Optimal Method ◽  
Gear Profile

In view of characteristics of involute helical gear profile, analyzed the multi-axis machining process for helical gear. Focused on the processing characteristics of helical gear for multi-axis machining, discussed tool path generation, machining program, tool path simulation, cutter interference and collision detection for machine tool and gear profile, seeking out the optimal method and process of helical gear for multi-axis machining. Applying this machining technology in manufacture, it can improve performance of gear, while it can also improve efficiency of manufacture.

scholarly journals Adaptive Spiral Tool Path Generation for Diamond Turning of Large Aperture Freeform Optics

Materials ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 810 ◽  
Author(s):  
Dongfang Wang ◽  
Yongxin Sui ◽  
Huaijiang Yang ◽  
Duo Li
Keyword(s):  
Tool Path ◽  
Tool Path Generation ◽  
Diamond Turning ◽  
Surface Generation ◽  
Machining Efficiency ◽  
Path Generation ◽  
Control Points ◽  
Large Aperture ◽  
Freeform Optics ◽  
Slow Tool Servo

Slow tool servo (STS) diamond turning is a well-developed technique for freeform optics machining. Due to low machining efficiency, fluctuations in side-feeding motion and redundant control points for large aperture optics, this paper reports a novel adaptive tool path generation (ATPG) for STS diamond turning. In ATPG, the sampling intervals both in feeding and cutting direction are independently controlled according to interpolation error and cutting residual tolerance. A smooth curve is approximated to the side-feeding motion for reducing the fluctuations in feeding direction. Comparison of surface generation of typical freeform surfaces with ATPG and commercial software DiffSys is conducted both theoretically and experimentally. The result demonstrates that the ATPG can effectively reduce the volume of control points, decrease the vibration of side-feeding motion and improve machining efficiency while surface quality is well maintained for large aperture freeform optics.

C23 Tool Path Generation for Complex Surface in case of 5-Axis Machine Tool

2008 ◽  
Vol 2008.7 (0) ◽  
pp. 189-190
Author(s):  
Takehisa KOIZUMI ◽  
Keiichi NAKAMOTO ◽  
Tohru ISHIDA ◽  
Yoshimi TAKEUCHI
Keyword(s):  
Machine Tool ◽  
Tool Path ◽  
Complex Surface ◽  
Tool Path Generation ◽  
Path Generation

scholarly journals Tool Path Generation, for Complex Surface Machining, Using Point Cloud Data

Procedia CIRP ◽  
2015 ◽  
Vol 26 ◽  
pp. 397-402 ◽  
Author(s):  
Anadil Masood ◽  
Rooha Siddiqui ◽  
Michelle Pinto ◽  
Hira Rehman ◽  
Maqsood A. Khan
Keyword(s):  
Point Cloud ◽  
Tool Path ◽  
Complex Surface ◽  
Tool Path Generation ◽  
Path Generation ◽  
Point Cloud Data ◽  
Surface Machining ◽  
Cloud Data

scholarly journals Theoretical and Experimental Investigation of Surface Topography Generation in Slow Tool Servo Ultra-Precision Machining of Freeform Surfaces

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2566 ◽  
Author(s):  
Duo Li ◽  
Zheng Qiao ◽  
Karl Walton ◽  
Yutao Liu ◽  
Jiadai Xue ◽  
...  
Keyword(s):  
Surface Topography ◽  
Tool Path ◽  
Tool Path Generation ◽  
Surface Generation ◽  
Precision Machining ◽  
Path Generation ◽  
Freeform Surfaces ◽  
Ultra Precision ◽  
Slow Tool Servo ◽  
Radius Compensation

Freeform surfaces are featured with superior optical and physical properties and are widely adopted in advanced optical systems. Slow tool servo (STS) ultra-precision machining is an enabling manufacturing technology for fabrication of non-rotationally symmetric surfaces. This work presents a theoretical and experimental study of surface topography generation in STS machining of freeform surfaces. To achieve the nanometric surface topography, a systematic approach for tool path generation was investigated, including tool path planning, tool geometry selection, and tool radius compensation. The tool radius compensation is performed only in one direction to ensure no high frequency motion is imposed on the non-dynamic axis. The development of the surface generation simulation allows the prediction of the surface topography under various tool and machining variables. Furthermore, it provides an important means for better understanding the surface generation mechanism without the need for costly trial and error tests. Machining and measurement experiments of a sinusoidal grid and microlens array sample validated the proposed tool path generation and demonstrated the effectiveness of the STS machining process to fabricate freeform surfaces with nanometric topography. The measurement results also show a uniform topography distribution over the entire surface and agree well with the simulated results.

An Optimal Method of Tool Path Generation for Radial Sinusoidal Surface

2014 ◽  
Vol 1027 ◽  
pp. 20-23 ◽  
Author(s):  
Shi Jun Ji ◽  
Hui Juan Yu ◽  
Ji Zhao ◽  
Jin Chao Li ◽  
Lei Lei Liu
Keyword(s):  
Tool Path ◽  
Tool Path Generation ◽  
Diamond Turning ◽  
Machining Accuracy ◽  
Path Generation ◽  
Optimal Method ◽  
Spiral Tool Path ◽  
Ultra Precision ◽  
Sinusoidal Surface ◽  
Theoretical Analyses

Tool path generation is an important part of ultra-precision manufacturing, and spiral tool path is one typical driving path. For single point diamond turning (SPDT), two methods are commonly used to generate the driving points on the spiral tool path, which are equally spaced angles and equally spaced arcs for two adjacent cutting points. But these two methods both have the defects for machining radial sinusoidal surface with SPDT. In this paper, the theoretical analyses of the two different methods are conducted and compared respectively. Then, an optimal method of generating the spiral cutting tool path is proposed on the base of theoretical analyses, which can avoid disadvantages of two original methods. The proposed method can enhance the machining accuracy and fabricating efficiency for ultra-precision machining of the radial sinusoidal surface with SPDT.

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