scholarly journals Special Issue on Recent Control Technologies and Precision Machining/Processing. Preview-learning Controller for High-precision and High-speed Machining.

1993 ◽  
Vol 59 (9) ◽  
pp. 1431-1434
Author(s):  
Hiroshi NAKAMURA
Keyword(s):  
High Precision ◽  
High Speed ◽  
Precision Machining ◽  
High Speed Machining ◽  
Special Issue ◽  
Control Technologies

High Precision Cutting and High Speed Interrupted Cutting of Hardened Steel With PCBN Tools

1999 ◽  
Author(s):  
Katsuhito Yoshida ◽  
Satoru Kukino ◽  
Takashi Harada ◽  
Tomohiro Fukaya ◽  
Junichi Shiraishi ◽  
...  
Keyword(s):  
High Precision ◽  
High Speed ◽  
New Technologies ◽  
Cubic Boron Nitride ◽  
Cutting Tools ◽  
Hardened Steel ◽  
Precision Machining ◽  
Polycrystalline Cubic Boron Nitride ◽  
Interrupted Cutting ◽  
Pcbn Tools

Abstract PCBN (Polycrystalline Cubic Boron Nitride) cutting tools have become very familiar in the industries for cutting hardened steel parts and the demand for PCBN tools is growing rapidly. One of the reasons for this is the trend of replacing grinding processes with cutting. Although the trend of processing is to use more cutting, there still remains grinding in many processing fields. High precision machining and high speed interrupted machining have been such fields. In this study it has been verified that a novel cutting method can be applied to high precision machining with the smoothness of Rz 0.8 μm and that a new PCBN has sufficient reliability against tool failure in high speed (< 250m/min) interrupted cutting. Thus cutting has become applicable to those machining and the trend of replacement of grinding with cutting will be enhanced. Those new technologies will be introduced in this report.

scholarly journals Research on Several Tool Chuck Technology in High Speed Milling

2018 ◽  
Vol 207 ◽  
pp. 02007
Author(s):  
Zhenyu Zhao ◽  
Xiaomei Xu ◽  
Yongquan Zhou ◽  
Haibin Xiao
Keyword(s):  
High Precision ◽  
High Speed ◽  
Static Pressure ◽  
Precision Machining ◽  
High Speed Milling ◽  
Existing Problems ◽  
Clamping System

In order to meet the requirements of high-speed precision machining technology, the paper elaborates the tool clamping technology commonly used in high-precision machining, such as the static pressure expansion chuck, CoroGrip chuck, and stress locking chuck and so on. How to correctly select the tool clamping system, the characteristics of the tool clamping system and the existing problems are analyzed.

Key Technology of 5-Axis NC Programming and High-Speed Milling for Integral Impellers Based on the General Software UG

2011 ◽  
Vol 314-316 ◽  
pp. 1633-1637
Author(s):  
Jun Min Xiao ◽  
Chang Ming Zhao
Keyword(s):  
High Speed ◽  
Developed Countries ◽  
Precision Machining ◽  
High Speed Machining ◽  
High Speed Milling ◽  
Key Technology ◽  
Nc Programming ◽  
Manufacturing Accuracy ◽  
Programming Software

Integral impellers are very important parts in the fields of aerospace, shipping and locomotive, whose manufacturing accuracy directly affects performance of key equipments. In developed countries special NC programming software is widely used in order to manufacture integral impellers, the vast majority of enterprises have not special NC programming software of integral impellers owing to expensive cost in China. Key technology of 5-axis NC Programming for integral impellers was solved by using the general software UG and precision machining of integral impellers had been implemented in 5-axis high-speed machining centre.

Study on Precision Slicing Process of Single-Crystal Silicon by Using Dicing Wire Saw

2016 ◽  
Vol 1136 ◽  
pp. 350-356 ◽  
Author(s):  
Takaaki Suzuki ◽  
Toshinori Otsuki ◽  
Ji Wang Yan
Keyword(s):  
Single Crystal ◽  
High Precision ◽  
High Speed ◽  
Single Crystal Silicon ◽  
Crystal Silicon ◽  
Wire Saw ◽  
Hard And Brittle Materials ◽  
Feeding Speed ◽  
Wire Feeding ◽  
Control Technologies

Precision slicing tests were performed for single-crystal silicon by using a newly developed dicing wire saw system and diamond wires. The developed dicing wire saw enables slicing thick workpiece of hard and brittle materials which could not be sliced by conventional dicing machines. To achieve high precision and efficiency, the dicing wire saw system adopted tension control and high speed control technologies which provides a maximum wire feeding speed of 2000m/min. In this study, the diamond wire was driven in a single direction at a speed of 750-1750m/min and the slicing force, wire wear and workpiece surface roughness after slicing were investigated experimentally. The results showed that as a new slicing system, the developed dicing wire saw was useable for high-precision slicing of thick workpiece.

Kinematics and Simulation for a High-Precision Parallel Kinematic Platform

2006 ◽  
Vol 315-316 ◽  
pp. 834-837
Author(s):  
Ying Hu ◽  
Hong Hu ◽  
B. Li
Keyword(s):  
High Precision ◽  
Inverse Kinematics ◽  
High Speed ◽  
Virtual Prototype ◽  
Precision Machining ◽  
Kinematic Simulation ◽  
Calibration Algorithm ◽  
Parallel Kinematic ◽  
Simulation Results

To meet the high speed and high precision requirements of machining freeform workpieces, a 4-DOF parallel kinematic platform with the configuration of 4 actuated legs plus a passive leg is proposed in this paper. Inverse kinematics and the calibration algorithm are developed, and virtual prototype modeling and kinematic simulation using MSC/ADAMS are carried out. The simulation results exhibit that the proposed structure is capable of implementing the high-precision machining requirements of freeform parts.

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