The effect of characteristics of free-form surface on the machined surface topography in milling of panel mold

2017 ◽  
Vol 98 (1-4) ◽  
pp. 151-163 ◽  
Author(s):  
Lin Yang ◽  
Shi Wu ◽  
Xianli Liu ◽  
Zhijing Liu ◽  
Meiwen Zhu ◽  
...  
Keyword(s):  
Surface Topography ◽  
Free Form ◽  
Machined Surface ◽  
Free Form Surface

Generation of Regularly Aligned Curved Surface Patches on Free-Form Surface for Patch Division Milling

2012 ◽  
Vol 523-524 ◽  
pp. 54-57
Author(s):  
Kai Xu ◽  
Hiroyuki Sasahara
Keyword(s):  
Tool Path ◽  
End Milling ◽  
Added Value ◽  
Curved Surface ◽  
Surface Patch ◽  
Free Form ◽  
Feed Speed ◽  
Machined Surface ◽  
Surface Patches ◽  
Free Form Surface

This study describes a new machining strategy to make regularly aligned cutter marks on free-form surface efficiently for increasing the added value of industrial product. While the free-form surface is divided into many small patch segments employing curved surface patch division milling technique which can substitute for the conventional method, thus avoiding the influence of the change in the curvature. And the patch segments will be machined by a spiral tool path respectively, so that regularly aligned cutter marks can be successfully formed on the curved surface patches by controlling cross-feed, feed speed per tooth, number of teeth and the length of the tool path. Comparing the machined surface and the simulation result, the cutter marks agree with it. If the surface is machined only by the ball end milling with a machining center, this method will be a very effective tool for the machinery industry.

The Effect of Normal Curvature of the Free Surface on the Cutting Width

2011 ◽  
Vol 328-330 ◽  
pp. 332-335
Author(s):  
Ming Hai Wang ◽  
Xiao Peng Li ◽  
Lei Sun ◽  
Yue Sun
Keyword(s):  
Free Surface ◽  
Cutting Tools ◽  
Surface Curvature ◽  
Normal Curvature ◽  
Free Form ◽  
Machining Accuracy ◽  
Machined Surface ◽  
Surface Machining ◽  
Free Form Surface

This paper analyzes the influence of processing surface curvature of the free surface to the cutting width to improve the cutting width of free surface. The results show that this analysis is feasible to improve the process if the machining accuracy allows. It shows that the curvature of the machined surface and the curvature of the cutting tools have a great impact on the cutting width if they are matched reasonable. Therefore, analyzing the curvature of the surface of the surface of free-form surface machining can improve the cutting width effectively.

scholarly journals Aspects of Fibre Composite Machining

2012 ◽  
Vol 9 (2) ◽  
pp. 18-20
Author(s):  
Wojciech Zębala ◽  
Andrzej Matras
Keyword(s):  
Surface Quality ◽  
Fibre Composite ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Free Form ◽  
Machined Surface ◽  
Parameters Selection ◽  
Machined Surface Quality ◽  
Free Form Surface

Abstract Paper presents some aspects of fibre composite milling. Composites are particularly applied in the sectors such as aircraft, aerospace and automotive industries for they are light and relatively easy can be forming in the desired shapes. The purpose of research was optimization of free form milling considering the machined surface quality (mainly roughness). After proper cutting parameters selection (feed and cutting speed) the example parts with free form surface were machined.

A Golay3 sparse aperture optical system of primary mirror with free-form surface

2021 ◽  
Vol 28 (1) ◽  
pp. 113-118
Author(s):  
Bin Chen ◽  
Quanying Wu ◽  
Junliu Fan
Keyword(s):  
Optical System ◽  
Free Form ◽  
Primary Mirror ◽  
Sparse Aperture ◽  
Free Form Surface

Tool Path Generation for Five-Axis Controlled Machining of Free-Form Surface Using Barrel Tool: Control of Contact Point on Cutting Edge

2020 ◽  
Author(s):  
Tomonobu Suzuki ◽  
Koichi Morishige
Keyword(s):  
Tool Path ◽  
Contact Point ◽  
Cutting Edge ◽  
Free Form ◽  
End Mill ◽  
Ball End Mill ◽  
Surface Machining ◽  
Free Form Surface ◽  
The Cost ◽  
Five Axis

Abstract This study aimed to improve the efficiency of free-form surface machining by using a five-axis controlled machine tool and a barrel tool. The barrel tool has cutting edges, with curvature smaller than the radius, increasing the pick feed width compared with a conventional ball end mill of the same tool radius. As a result, the machining efficiency can be improved; however, the cost of the barrel tool is high and difficult to reground. In this study, a method to obtain the cutting points that make the cusp height below the target value is proposed. Moreover, a method to improve the tool life by continuously and uniformly changing the contact point on the cutting edge is proposed. The usefulness of the developed method is confirmed through machining simulations.

Application of Convex Hull for Tool Interference Avoidance in 5-Axis CNC Machining

1996 ◽  
Author(s):  
Yuan-Shin Lee ◽  
Tien-Chien Chang
Keyword(s):  
Convex Hull ◽  
Tool Path ◽  
Correction Method ◽  
Nc Machining ◽  
Cnc Machining ◽  
Free Form ◽  
Interference Avoidance ◽  
Tool Interference ◽  
Free Form Surface ◽  
Free Form Surfaces

Abstract In this paper, a methodology of applying convex hull property in solving the tool interference problem is presented for 5-axis NC machining of free-form surfaces. Instead of exhausted point-by-point checking for possible tool interference, a quick checking can be done by using the convex hull constructed from the control polygon of free-form surface modeling. Global tool interference in 5-axis NC machining is detected using the convex hull of the free-form surface. A correction method for removing tool interference has also been developed to generate correct tool path for 5-axis NC machining. The inter-surface tool interference can be avoided by using the developed technique.

Sign in / Sign up

Export Citation Format

Share Document