scholarly journals Investigation of Tool Performance in Cutting Process of AISI 1020 Material by Using Band Saw

2014 ◽  
Vol 14 (2) ◽  
pp. 11-18
Author(s):  
Tuncay YILMAZ ◽  
İsmail UCUN ◽  
İrfan UCUN
Keyword(s):  
Cutting Process ◽  
Tool Performance ◽  
Band Saw

Real-Time Monitoring System of Cutting Process Based on Cutting Temperature

2008 ◽  
Vol 392-394 ◽  
pp. 946-950
Author(s):  
Yan Ming Quan ◽  
Jing Zhao ◽  
Y.S. Le
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Cutting Temperature ◽  
Current Collector ◽  
Cutting Process ◽  
Real Time Monitoring ◽  
Machined Surface ◽  
Tool Performance ◽  
Electrical Brush ◽  
Natural Thermocouple

Cutting temperature measurement and its variety tendency can reflect cutting tool performance and machined surface quality directly. By means of a mercury current collector or an electrical brush device the online measurement of thermoelectric potential of tool-workpiece natural thermocouple in milling is obtained, based on which a new cutting process real-time monitoring system is developed. The system takes the average cutting temperature in tool-workpiece interface as the monitoring target and the rotation rate of machine spindle as the adjustment object, which leaves out onerous and complex modeling and makes the monitoring and adjustment objective, direct and effective.

Study on Optimizing the Process Parameters for the Band Saw Equipment

2013 ◽  
Vol 328 ◽  
pp. 208-212 ◽  
Author(s):  
Guo Jin Chen ◽  
Jing Ni ◽  
Ting Ting Liu ◽  
Hui Peng Chen ◽  
You Ping Gong
Keyword(s):  
Control System ◽  
Process Parameters ◽  
Digital Control ◽  
Optimization Design ◽  
Parameters Optimization ◽  
Numerical Control ◽  
Cutting Process ◽  
Processing Accuracy ◽  
Band Saw ◽  
Sawing Process

Aiming at the lack of the mature process parameters optimization design and the dedicated digital control system for the band saw equipment at home, the dynamic model of the sawing process is established. The correlativity of the cutting quality with the cutting process parameters is analyzed. The optimization design of the cutting process parameters and the dedicated digital control strategy for the appropriate band saw equipment are studied to form the independent intellectual property rights on the parameters optimization technology for the sawing equipment process and the numerical control system based on the technology. That provides the technical support for improving the processing accuracy, efficiency, and reliability of the band saw equipment.

scholarly journals A Critical Reanalysis of Uncontrollable Washboarding Phenomenon in Metal Band Sawing

Materials ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 4472
Author(s):  
Kazimierz A. Orlowski ◽  
Michal Dobrzynski ◽  
Grzegorz Gajowiec ◽  
Marcin Lackowski ◽  
Tomasz Ochrymiuk
Keyword(s):  
Outer Layer ◽  
High Hardness ◽  
Cutting Process ◽  
Processed Material ◽  
Material Texture ◽  
Core Hardness ◽  
Wave Regeneration ◽  
Cutting Processes ◽  
Band Saw ◽  
Horizontal Band

The article analyzes the cutting process of hard bars. Investigations conducted in industrial conditions demonstrated the presence of surface errors in the machined workpieces in the form of washboard patterns. The purpose of this study was to analyze the results of cutting on band sawing machines with different band saw blades. The cutting processes were conducted on three different horizontal band sawing machine types. Analyzed material was an alloy steel Ø40 mm rod with a hardened surface covered with a thin layer of chromium. The hardness of the outer layer was 547 HV with a core hardness of 180 HV. The surface topography measurements of the processed workpieces were carried out with the 3D Optical Profiler, which supplied information on the irregularities of the processed material texture. In each of the analyzed cases, a corrugated surface was obtained after sawing, which is the effect of the occurrence of the washboarding phenomenon, despite the fact that the teeth of each band saw had variable pitches. The washboarding phenomenon when cutting rods with hard surfaces is caused by the phenomenon of wave regeneration. Despite the use of variable pitch saw blades, the cutting process results in rippling of the sawn surface, which is caused by the high hardness of the outer layer of the workpiece, as well as by the type of tool with spring setting of teeth.

scholarly journals The Effect of Cutting Techniques on the Structure and Properties of Low-Alloy Martensitic Steels

2020 ◽  
pp. 59-67
Author(s):  
Mariusz Prażmowski ◽  
Piotr Fras
Keyword(s):  
Surface Roughness ◽  
Structural Changes ◽  
Research Work ◽  
Base Material ◽  
Welding Process ◽  
Cutting Process ◽  
Abrasive Waterjet ◽  
Structure And Properties ◽  
Martensitic Steels ◽  
Band Saw

The paper analyses the effect of cutting techniques on the structure and properties of low-alloy martensitic steels. Tests involved steels characterised by increased abrasive wear resistance. The test steels were provided by four steel manufacturers. The cutting process was performed using a gas torch, plasma, abrasive waterjet and a band saw. The research work included hardness measurements of plates in the pre-treatment state, the distribution of hardness in the cut zone, measurements of surface roughness after cutting as well as metallographic tests of the base material (BM) and the heat affected zone (HAZ). The cutting method significantly affected the operational properties of abrasion-resistant steels. In terms of the surface quality, the most favourable results were obtained using the plasma cutting process, which was confirmed by related measurements of surface roughness. The cutting process involving the use of gas torches and plasma led to the deterioration of the mechanical properties of the steel in the cut zone. The aforesaid result could be ascribed to the formation of the HAZ in this area, the morphology of which was similar to the HAZ formed during the welding process. The hardness measurements and metallographic tests concerning the cut zone revealed a significant decrease in steel hardness, resulting from heat-triggered structural changes.

Method to evaluate residual stresses in the laser cutting process

2002 ◽  
Vol 12 (1) ◽  
pp. 27-41 ◽  
Author(s):  
Y. Zamachtchikov ◽  
F. Breaban ◽  
P. Vantomme ◽  
A. Deffontaine
Keyword(s):  
Residual Stresses ◽  
Laser Cutting ◽  
Cutting Process

Optimization of Tool Travel Path in A Multiple Holes Cutting Process By Genetic Algorithm

2013 ◽  
Vol 3 (1) ◽  
pp. 30-36
Author(s):  
Neeraj Sharma ◽  
◽  
Rahul Dev Gupta ◽  
Nirmal Kumar ◽  
◽  
...  
Keyword(s):  
Genetic Algorithm ◽  
Cutting Process ◽  
Travel Path ◽  
Multiple Holes

CPM REX 25

Alloy Digest ◽  
1980 ◽  
Vol 29 (7) ◽  
Keyword(s):  
Heat Treatment ◽  
High Speed ◽  
High Speed Steel ◽  
High Hardness ◽  
Heat Treating ◽  
High Speeds ◽  
Aisi Type ◽  
Tool Performance ◽  
End Mills ◽  
Machining Operations

Abstract CPM REX 25 is a super high-speed steel made without cobalt. It is comparable to AISI Type T15 cobalt-containing high-speed steel in response to heat treatment, properties, and tool performance. CPM REX 25 is recommended for machining operations requiring heavy cuts, high speeds and feeds, and difficult-to-machine materials of high hardness and abrasion resistance. Typical applications are boring tools, drills, gear cutters, punches, form tools, end mills and broaches. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, machining, and surface treatment. Filing Code: TS-365. Producer or source: Crucible Materials Corporation.

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