Arc–surface intersection method to calculate cutter–workpiece engagements for generic cutter in five-axis milling

2016 ◽  
Vol 73 ◽  
pp. 1-10 ◽  
Author(s):  
Zhou-Long Li ◽  
Xin-Zhi Wang ◽  
Li-Min Zhu
Keyword(s):  
Surface Intersection ◽  
Intersection Method ◽  
Five Axis

Automatic ray–surface intersection method

1982 ◽  
Vol 21 (12) ◽  
pp. 2184 ◽  
Author(s):  
B. J. Howell ◽  
M. E. Wilson
Keyword(s):  
Surface Intersection ◽  
Intersection Method

Collision Avoidance Schemes for Orthogonal Pipe Routing

1999 ◽  
Vol 15 (04) ◽  
pp. 198-206
Author(s):  
C. C. Kuo ◽  
J. K. Wu ◽  
H. J. Shaw
Keyword(s):  
Collision Avoidance ◽  
Routing Schemes ◽  
Surface Intersection ◽  
Pipe Routing ◽  
Distance Matrices ◽  
Equipment And Pipelines ◽  
Intersection Method

This paper describes collision detecting and avoidance schemes to automatically lay out piping routes. The overlapping between the boundary boxes of equipment and pipelines is the basis for determining two types of collision: vertex-interference and edge-interference. Three collision-avoidance routing schemes have been developed using the modified adjacency and distance matrices and the line-surface intersection method. This collision avoidance scheme is for orthogonal pipe routing and forms the basis for extension to other routing principles.

The Variable Cross-Section Helix Turning Trajectory Algorithm Used on the Middle-Convex and Varying Ellipse Piston Skirt

2011 ◽  
Vol 311-313 ◽  
pp. 2340-2343
Author(s):  
Yin Biao Guo ◽  
Hai Bin Huang ◽  
Jian Hua Lin
Keyword(s):  
Cross Section ◽  
Variable Cross Section ◽  
Variable Cross ◽  
Coordinate Surface ◽  
Piston Skirt ◽  
Contact Points ◽  
Surface Intersection ◽  
Interpolation Accuracy ◽  
Polar Radius ◽  
Intersection Method

In order to turning the skirt of middle-convex and varying ellipse piston, this paper proposes a Variable Cross-section Helix Turning Trajectory (VCHTT) algorithm. it divide the turning trajectory of the piston skirt into transversal and helix, then obtain the coordinates of ellipse transversal cutter-contact points on the basis of centric polar radius arc interpolation (CPRAI) algorithm, and uses line surface intersection method to obtain the coordinates of helix cutter-contact points on the middle-convex and varying ellipse piston skirt. At last，merge two coordinates matrices to obtain the final coordinate surface of cutter-contact points of turning tool. With comparison, it finds that the VCHTT algorithm improves the interpolation accuracy by 0.04um than other methods.

Identification Algorithm for Instantaneous Engaged Cutting Edge Elements in Five-Axis Milling

2011 ◽  
Vol 189-193 ◽  
pp. 1930-1933
Author(s):  
Ze Hua Huang ◽  
Jian Yong Li ◽  
Yong Lin Cai ◽  
Wen Gang Fan
Keyword(s):  
Coordinate System ◽  
Cutting Edge ◽  
Identification Algorithm ◽  
Exit Angle ◽  
Machining Time ◽  
Entrance Angle ◽  
Edge Elements ◽  
Surface Intersection ◽  
Feature Line ◽  
Five Axis

An identification algorithm for instantaneous engaged cutting edge elements in five-axis milling is presented in this paper. An application of curve and surface intersection is used for filtering the engaged cutting edge elements roughly on any cutter location (CL) point at any machining time. And then the real engaged cutting edge elements can be further selected with computing entrance angle and exit angle of every axial disk element. Based on envelop theory, the swept feature-line can be calculated. According to the swept feature-line, entrance angle and exit angle of every axial disk element can be obtained in the cutter coordinate system. The validity of the algorithm mentioned above is verified by examples with various cutting depths.

The new CM-Series TEMs: integration of a five-axis motorized, fully computer-controlled goniometer

1993 ◽  
Vol 51 ◽  
pp. 258-259
Author(s):  
Marc J.C. de Jong ◽  
P. Emile S.J. Asselbergs ◽  
Max T. Otten
Keyword(s):  
Mechanical Design ◽  
Computer Control ◽  
Objective Lens ◽  
Access Port ◽  
Vibration Stability ◽  
Transmission Electron ◽  
Computer Controlled ◽  
High Degree ◽  
Five Axis ◽  
Five Axes

A new step forward in Transmission Electron Microscopy has been made with the introduction of the CompuStage on the CM-series TEMs: CM120, CM200, CM200 FEG and CM300. This new goniometer has motorization on five axes (X, Y, Z, α, β), all under full computer control by a dedicated microprocessor that is in communication with the main CM processor. Positions on all five axes are read out directly - not via a system counting motor revolutions - thereby providing a high degree of accuracy. The CompuStage enters the octagonal block around the specimen through a single port, allowing the specimen stage to float freely in the vacuum between the objective-lens pole pieces, thereby improving vibration stability and freeing up one access port. Improvements in the mechanical design ensure higher stability with regard to vibration and drift. During stage movement the holder O-ring no longer slides, providing higher drift stability and positioning accuracy as well as better vacuum.

Numerical prediction of interference drag of strut-surface intersection in transonic flow

AIAA Journal ◽  
2001 ◽  
Vol 39 ◽  
pp. 857-864 ◽  
Author(s):  
Philippe-Andre Tetrault ◽  
Joseph A. Schetz ◽  
Bernard Grossman
Keyword(s):  
Transonic Flow ◽  
Numerical Prediction ◽  
Surface Intersection

scholarly journals Five Axis Control Machining of Surface Texture with Regular Pattern

2009 ◽  
Vol 75 (12) ◽  
pp. 1459-1463 ◽  
Author(s):  
Akira HAYASHI ◽  
Yoshikazu KOBAYASHI ◽  
Kenji SHIRAI ◽  
Yasuhiko HARA
Keyword(s):  
Surface Texture ◽  
Regular Pattern ◽  
Five Axis
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