Manufacturing Technology Journal - Latest articles
Results 211 to 213 of 213:
Parameter Optimization Study of Ultra-High Speed Cutting by DOE Method
Dongya Li, Yichen Jiang, Shuang Wang, Yifan Wu
Manufacturing Technology 2024, 24(1):73-82 | DOI: 10.21062/mft.2024.004 
With the increasing demand for high-quality flange, there is a greater need for high-quality and high-speed machining technology. Aiming at the difficulty of surface roughness in meeting design requirements and poor machining stability of 7075 aluminum alloy, the classical Design of Experiments (DOE) method is employed to optimize the machining parameters and identify eight pertinent factors. By selecting the feed rate and cutting speed as the two significant factors, a mathematical model of roughness is derived, and the theoretically optimal machining parameters are determined. According to corresponding experimental results, the roughness, the parallelism...
Observation of the Amount of Wear and the Microstructure of Hardfacing Layers after the Test of Resistance to Abrasive Wear
Miroslava «avodová, Miroslav Dľupon, Monika Vargová, Dana Stančeková, Jozef Krilek
Manufacturing Technology 2024, 24(1):131-140 | DOI: 10.21062/mft.2024.003
The article deals with the evaluation of the amount of wear of the base material and selected hardfac-ing materials intended for tools for wood processing in forestry after a test of resistance to abrasive wear in laboratory conditions. The values of average weight loss Wh[g] and relative resistance to abrasive wear Ψh[-] were determined by calculation. The topography of the surface after the track of the rubber disc and the abrasive of the testing device was evaluated with a confocal microscope. The depth of the disc track Pt[μm;mm] was also evaluated with a confocal microscope. The state of the samples surface after the test, as well as...
Influence of Technological Parameters on the Cutting Temperature during Trochoidal Milling
Kamil Piotr Waszczuk
Manufacturing Technology 2024, 24(1):148-153 | DOI: 10.21062/mft.2024.001
The aim of the article was to present the results of cutting temperature measurements during trochoidal milling. The investigated material was 145Cr6 (50 HRC). Three trochoidal paths were used: A– described by movement circle, B– described by arcs and straight lines, C– described by short lines between a lot of points. The main conclusions include: similar values of cutting tem-peratures when using paths A and C (differences between the values of about 5%), the use of a trochoidal path type B enables a significant reduction of the cutting temperature. During tro-choidal milling, the maximum temperature values were about 420ºC.