scholarly journals RESULTS OF INDUSTRIAL TESTING OF CARBIDE CUTTING TOOLS BY PULSED MAGNETIC FIELD TREATMENT AND THE EFFECT ON THE INCREASE OF THE CUTTING PROCESS EFFICIENCY

Author(s):  
Viktor Kovalev ◽  
Galyna Klymenko ◽  
Yana Vasylchenko ◽  
Maksym Shapovalov ◽  
Olesya Antsiferova ◽  
...  

The task of increasing the efficiency of machining parts on heavy machines was determined, scientifically substantiated and solved by hardening a carbide tool the pulsed magnetic field processing (PMFP). The efficiency of machining of parts is understood as an increase in its productivity, a reduction in the cost and costs of tool materials, and an increase in instrument reliability. The working conditions of cutting tools at heavy engineering enterprises are analyzed. The wear resistance of carbide cutting tools, which have been strengthened by the PMFP, was investigated using forced test methods and modeling of the cutting process. The mechanism of changing the properties of a hard alloy under the action of a pulsed magnetic field is established. The main factors affecting the change in the wear resistance of a hard alloy under the action of a pulsed magnetic field are identified. The effect of pulsed magnetic field processing on the performance of carbide cutting tools under production conditions is investigated. The effect of hardening on productivity, cost of operation and instrumental costs is established. The interrelation of the parameters of the PMFP, the parameters of the process of machining parts and production efficiency is investigated. A statistical model has been developed that allows determining the productivity of mechanical processing depending on the properties of the tool material and the processing parameters of a pulsed magnetic field.

2000 ◽  
Vol 125 (1-3) ◽  
pp. 251-256 ◽  
Author(s):  
Y.F. Ivanov ◽  
V.P. Rotshtein ◽  
D.I. Proskurovsky ◽  
P.V. Orlov ◽  
K.N. Polestchenko ◽  
...  

2014 ◽  
Vol 971-973 ◽  
pp. 1700-1705
Author(s):  
Xue Jun Tian ◽  
Zhi Peng Dong ◽  
Feng Ye

Hard alloy has been widely applied as a type of cutter material and cemented carbide cutting tools have become the main tools for processing enterprises in our country. During the blade production process, traditional artificial detection methods for surface defects can't satisfy the demands of production quality and production efficiency any longer. Online automation rapid detection has been realized based on the Compute Unified Device Architecture (CUDA) by utilizing the computing capability of GPU.


2016 ◽  
Vol 693 ◽  
pp. 1148-1154 ◽  
Author(s):  
Yu Huan Fei ◽  
Chuan Zhen Huang ◽  
Han Lian Liu ◽  
Bin Zou

In this work, two kinds of Al2O3-TiC-TiN ceramic cutting tools (AC2U and AC2UN2) were developed by hot-pressing sintering techniques. The mechanical properties were measured and the cutting performance was investigated. The workpiece used in the cutting experiment was quenched carbon tool steel T10A, and the tool material for comparison was LT55. The wear resistance and the main wear patterns of the ceramic tools were analyzed at the high speed of 300m/min. The results indicated that the novel Al2O3-TiC-TiN ceramic cutting tools showed better cutting performance than LT55, and AC2UN2 was better suitable for machining quenched T10A. When the cutting condition was v=300m/min, f=0.1mm/r and ap=0.1mm, the adhesion wear and abrasive wear of the novel ceramic tools were slighter than those of LT55, the diffusion wear resistance of AC2U was better and the oxidation resistance of AC2UN2 was better.


2012 ◽  
Vol 490-495 ◽  
pp. 262-266 ◽  
Author(s):  
Xiao Yun Wang ◽  
Zhen Zhen Huang

Garment cutting process is an important part of production ,directly related to the enterprise cost management and production efficiency. So, combined with the actual production need, the research for garment cutting process planning begins from task list to cutting plan, at last distributes the cutting task. It aims at improving the garment cutting process efficiency and reducing the production of the costs and optimize management. The source of the research is the Shijiazhuang Municipal Bureau of Science and Technology project. The subject number is 09113031A.


2008 ◽  
Vol 375-376 ◽  
pp. 163-167 ◽  
Author(s):  
Tie Fu ◽  
Qi Xun Yu ◽  
Bin Liu ◽  
Yu Guang Wu

In this paper, the development and mechanical, physical properties on cermet cutting tool material are described. By using the cermet insert NT7 developed in recent years and WC based carbide insert YT14, the tool wear, impact and cutting force tests to high strength steel 38CrNi3MoVA (hardened and tempered, HRC36~40) are processed respectively. The results of these tests demonstrate that NT7 cutting tools have better performance on some characteristics, such as wear resistance, tool life and cutting force. And its ability of impact resistance is similar to YT14. These researches will benefit to the poplarizaion and application of cermet cutting tool.


2009 ◽  
Vol 407-408 ◽  
pp. 604-607
Author(s):  
Li Zhou ◽  
Cheng Yong Wang ◽  
Yu Zhong Li ◽  
Zhe Qin

Micro carbide endmills suffer severe abrasive friction and impact wear in high speed milling of graphite. This paper focused on the study of the effect of Co content and WC grain size on the tool wear resistance of micro carbide endmills in high speed milling of graphite. The tool wear morphologies of cutting tools were examined at the initial wear stage and severe wear stage. The results showed that the abrasive resistance of micro carbide endmill increased with the decrease of Co content and WC grain size. The best impact resistance can be obtained with medium Co content and smaller WC grain size. The fine-grained carbide 0.2WC-8%Co is considered as the optimum tool material for high speed milling of graphite.


2019 ◽  
Vol 10 (1) ◽  
pp. 125-130 ◽  
Author(s):  
Viktor Kovalov ◽  
◽  
Yana Vasilchenko ◽  
Maksym Shapovalov ◽  
Raul Turmanidze ◽  
...  

Materials ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 585
Author(s):  
Marcel Kuruc ◽  
Tomáš Vopát ◽  
Jozef Peterka ◽  
Martin Necpal ◽  
Vladimír Šimna ◽  
...  

The paper deals with the issue of cutting zone and chip compression. The aim was to analyse the microstructure transverse section of the cutting zone on a metallographic cut, due to determined values of chip compression and plastic deformation, which affect the cutting process efficiency. The tested cutting tool material was coated with cemented carbide. The selected workpiece materials were C45 medium carbon steel of ISO grade and 62SiMnCr4 tool steel of ISO (W.Nr. 1.2101) grade. In the experiments, a DMG CTX alpha 500 turning centre was used. The cutting speed and feed were varied, and the depth of the cut was kept constant during the turning. The plastic deformation and chip compression determine the efficiency of the cutting process. The higher compression requires more work to perform the process and, therefore, it requires more energy for doing so. With the increase of the cutting speed, the deformation for C45 steel is decreased. The rapid deformation reduction was observed when the cutting speed was increased from 145 m/min to 180 m/min. Generally, deformation is decreasing with the increase of the feed. Only at a cutting speed of 145 m/min was the deformation elevation observed, when the feed was increased from 0.4 mm to 0.6 mm. During the turning of the 62SiMnCr4 tool steel we observed an error value at a cutting speed of 145 m/min and a feed of 0.4 mm was the middle cutting parameter. However, feed dependence was clear: With an increase of the feed, the plastic deformation was decreasing. This decreasing was more rapid with the increasing of the cutting speed. Besides plastic deformation, there was analysed chip compression as well. With the increasing of the cutting speed, there was a decrease of the chip compression. Due to a lack of information in the area of the chip compression and the plastic deformation in the cutting process, we decided to investigate the cutting zone for the turning of tool steels 62SiMnCr4, which was compared with the reference steel C45. The results could be applied to increase the efficiency of the process and improvement of the surface integrity.


2021 ◽  
Vol 42 (6) ◽  
pp. 717-724
Author(s):  
I.A. Pinahin ◽  
◽  
M. Moradi ◽  
М.А. Yagmurov ◽  
S.S. Vrublevskaya ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document