Results 61 to 70 of about 47,139 (341)

Part Repair using a Hybrid Manufacturing System [PDF]

, 2005
Nowadays, part repair technology is gaining more interest from military and industries due to the benefit of cost reducing as well as time and energy saving. Traditionally, part repair is done in the repair department using welding process.
Eiamsa-ard, Kunnayut, Liou, Frank W., Nair, Hari Janardanan, Ren, Lan, Ruan, Jianzhong, Sparks, Todd   +5 more
core   +2 more sources

Vision-Based Measurement of Two-Dimensional Positioning Errors of Machine Tools

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2011
This paper presents vision-based measurement of two-dimensional positioning errors of machine tools. A pre-calibrated grid plate is used as an artefact. The position of a grid point is measured in an image captured by a charge coupled device (CCD) camera
Soichi IBARAKI, Yusuke TANIZAWA
doaj   +1 more source

Reduction in the Volumetric Wear of a Ball Polishing Tool Using Ultrasonic-Vibration-Assisted Polishing Process

Lubricants, 2022
Ultraprecision freeform polishing using a bonnet or a felt ball mounted on a polishing head plays an important role in the mold and lens production industries. The volumetric wear of a bonnet or a felt polishing ball is still a problem to be solved.
Fang-Jung Shiou, Zhao-Li Ding, Sun-Peng Lin   +2 more
doaj   +1 more source

Fabrication of Edge Rounded Polylactic Acid Biomedical Stents by the Multi-Axis Micro-Milling Process

Applied Sciences, 2020
This paper presents the first try to fabricate degradable polylactic acid (PLA) biomedical stents with round edges by the multi-axis micro-milling process. Conventionally biomedical stents are produced by laser processing.
Fuh-Yu Chang, Yan-Chiau Chen, Te-Hsien Liang, Zong-Yan Cai   +3 more
doaj   +1 more source

Prediction and compensation of machining geometric errors of five-axis machining centers with kinematic errors [PDF]

Precision Engineering, 2009
Kinematic errors due to geometric inaccuracies in five-axis machining centers cause deviations in tool positions and orientation from commanded values, which consequently affect geometric accuracy of the machined surface. As is well known in the machine tool industry, machining of a cone frustum as specified in NAS979 standard is a widely accepted ...
Uddin, M. Sharif, Ibaraki, Soichi, Matsubara, Atsushi, Matsushita, Tetsuya   +3 more
openaire   +2 more sources

Evaluation of servo, geometric and dynamic error sources on five axis high-speed machine tool

, 2011
Many sources of errors exist in the manufacturing process of complex shapes. Some approximations occur at each step from the design geometry to the machined part.
Andolfatto, Loïc, Lavernhe, Sylvain, Mayer, René   +2 more
core   +2 more sources

Laser surface texturing of a WC-CoNi cemented carbide grade: surface topography design for honing application [PDF]

, 2018
Abrasive effectiveness of composite-like honing stones is related to the intrinsic surface topography resulting from the cubic boron nitride (CBN) grains protruding out of the metallic matrix.
Bähre, Dirk, Fang, Shiqi, Llanes Pitarch, Luis Miguel   +2 more
core   +2 more sources

Effects of Gravity and Non-Perpendicularity during Powder-Fed Directed Energy Deposition of Ni-Based Alloy 718 through Two Types of Coaxial Nozzle [PDF]

, 2020
The consequences of gravity and the nozzle inclination angle in the powder-fed Directed Energy Deposition (DED) process were examined in this study.
Alberdi, Amaia, Lamikiz, Aitzol, Ortiz, Mikel, Ramiro-Castro, Pedro   +3 more
core   +2 more sources

Research on Key Technology of Online Measurement of Five-axis Linkage Machine Tool

Journal of Applied Science and Engineering
In order to improve the machining accuracy and online measurement accuracy of the five-axis linkage machine tool, the motion solution of the double pendulum head five-axis linkage machine tool is realized based on the analysis of the movement and change ...
Dashuang Wang, RongJing Hong
doaj   +1 more source

Design of motion accuracy measurement device with three displacement sensors for machine tool and comparison of its setting method

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2014
The standard of test method for five-axis machining center is now under discussion by ISO. In its draft standard, the use of a measurement device with three displacement sensor is described in addition to the ball bar device that is well-known as the ...
Masashi YAMAJI, Naoki HAMABATA, Yukitoshi IHARA   +2 more
doaj   +1 more source