scholarly journals Study of Evaluation Machinability of a Stainless Steels and Accompanying Phenomena in the Cutting Zone During Machining

10.5772/34530 ◽  
2012 ◽  
Author(s):  
Jozef Jurko ◽  
Anton Panda ◽  
Tadeusz Zaborowski
Keyword(s):  
Stainless Steels ◽  
Cutting Zone

Manufacturing Accuracy when Drilling Holes in Stainless Austenitic Steels DIN 1.4301

2013 ◽  
Vol 420 ◽  
pp. 250-253 ◽  
Author(s):  
Jozef Jurko
Keyword(s):  
Stainless Steels ◽  
Cutting Speed ◽  
Cutting Conditions ◽  
Austenitic Steels ◽  
Depth Of Cut ◽  
Surface Accuracy ◽  
Cutting Zone ◽  
Manufacturing Accuracy

This article presents the results of experiments that concerned on the surface accuracy by drilling of a Stainless steels 1.4301. This article presents conclusions of machinability tests on a Stainless steels 1.4301. The results of cutting zone evaluation under cutting conditions (cutting speed in interval vc=50-100 m/min, depth of cut ap=2.75 mm and feed f=0.01-0,8 mm per rev.).

scholarly journals The use of tool materials for monitoring the state of cutting technological systems

2021 ◽  
Vol 25 (1) ◽  
pp. 17-30
Author(s):  
В. Ya. Mokritskiy ◽  
V. Yu. Shelkovnikov
Keyword(s):  
Tool Life ◽  
Stainless Steels ◽  
Tool Material ◽  
The State ◽  
Technological System ◽  
Dynamic State ◽  
Technological Systems ◽  
Software Environment ◽  
Life Period ◽  
Cutting Zone

 The aim was to develop a methodology for monitoring the dynamic state of the links “machine tool – device – cutting tool – detail” comprising a cutting technological system as applied to turning specialized stainless steels using replaceable standard hardmetal inserts. The research object was the hard-to-treat non-corrosive stainless steels 09Х17Н7Ю, 12Х18Н10Т and 13Х15Н5 АМ-3. Monitoring was carried out by simulating plate coatings in the Deform software environment. The diagnostic criterion was the tool life period up to the wear level of 0.5 mm along the rear edge. The effect of coatings on the tool life period was assessed according to the following parameters: temperature in the cutting zone, tension in the tool material and tool deformation. As a result, 10 optimal coatings having the greatest impact on the state of the cutting technological system under study were selected. These coatings can be used for diagnosing the state of cutting technological systems. The coatings were distinguished in terms of architecture (design, composition,structure and coating method). A technique for monitoring and managing the state of cutting technological systems according to the results of diagnostics was proposed. The deviation of the revealed state of the cutting technological system from the desired state was estimated by the life period of tools with different coatings for the same time of their operation. The state of the system under study was considered effective provided that the maximum tool life period due to the use of an optimal coating was achieved. A technique allowing assessment of the state of technological cutting systems by their simulation according to the parameters “temperature in the cutting zone”, “tension in the tool material” and “tool deformation” was proposed. This technique also permits monitoring of the state of cutting systems by the parameter "tool life period" and managing their state according to the results of diagnostics through the use of the most optimal plate coatings. The developed technique can be used to reveal the optimal parameters of the cutting mode of hard-to-treat specialized corrosion-resistant steels.  

Helical Drills Wear during Drilling of a New ELC Austenitic Stainless Steels

2012 ◽  
Vol 217-219 ◽  
pp. 2202-2205 ◽  
Author(s):  
Jozef Jurko ◽  
Anton Panda ◽  
Marcel Behún ◽  
Andrej Berdis ◽  
Ján Gecák ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Tool Wear ◽  
Stainless Steels ◽  
Cutting Speed ◽  
Austenitic Stainless Steels ◽  
Depth Of Cut ◽  
Low Carbon ◽  
Tool Wear Mechanisms ◽  
Cutting Zone

This article presents the results of experiments that concerned on the tool wear and tool wear mechanisms by drilling of a new Extra Low Carbon (ELC) austenitic stainless steel X02Cr16Ni10MoTiN. This article presents conclusions of machinability tests on new austenitic stainless steels X02Cr16Ni10MoTiN. The results of cutting zone evaluation under cutting conditions (cutting speed in interval vc=30-50 m/min, depth of cut ap=4.0 mm and feed f=0.02-0.08 mm per rev.).

Analysis of Cutting Zone Machinability during the Drilling of XCr18Ni8 Stainless Steel

2012 ◽  
Vol 224 ◽  
pp. 142-145
Author(s):  
Jozef Jurko ◽  
Anton Panda ◽  
Marcel Behún
Keyword(s):  
Stainless Steel ◽  
Stainless Steels ◽  
Feed Rate ◽  
Austenitic Stainless Steels ◽  
Theory And Practice ◽  
Cutting Zone ◽  
Cutting Speeds

This paper presents the conclusions of machinability tests on a XCr18Ni8 stainless steel. The content of this article also focuses on the analysis of selected basic indicators of steel machinability: quality of the processed surface. The results of the article are conclusions for working theory and practice for drillng of austenitic stainless steels. Based on the cutting tests, cutting speeds of 40 to 60 m/min, feed rate of 0.04 to 1.2 mm and screw drill carbide monolite.

Increasing the Efficiency of Milling Stainless Steels by Using Lubricating-Cooling Technological Medium

2021 ◽  
pp. 10-18
Author(s):  
E.R. Vaniev ◽  
V.V. Skakun ◽  
E.Sh. Dzhemilov ◽  
I.D. Abdulkerimov
Keyword(s):  
Oleic Acid ◽  
Stainless Steels ◽  
Cutting Forces ◽  
End Milling ◽  
Cutting Fluid ◽  
Special Device ◽  
Technological Medium ◽  
Continuous Mixing ◽  
Lubricating Film ◽  
Cutting Zone

This article considers the possibility of increasing the efficiency of end milling by using a modified lubricating-cooling technological medium, based on a water-miscible cutting fluid. The conditions for the effective use of modified coolant in processing stainless steels ensuring a decrease in cutting forces and therefore a decrease in vibrations, which contributes to an increase in the quality of manufactured products have been determined. A decrease in cutting forces is due to the presence of oleic acid in the modified cutting fluid, containing surfactants, forming a dense lubricating film on the surface of the cutting tool. When mixing oleic acid in a water-miscible cutting fluid, a special soap solution significantly improving the solubility is used. However, over time, stratification of liquids occurs. To ensure the homogeneity of the medium, a special device has been developed that allows continuous mixing of the compositions, due to the presence of impellers with differently oriented blades. To save a lubricant, the technology of minimum lubrication was used, which allows the lubricant to be supplied to the cutting zone in portions (dosed) using the Noga Minicool device.

The Use of TiAlN Coated Carbide Tool when Finish Machining Stainless Steel

2012 ◽  
Vol 224 ◽  
pp. 204-207
Author(s):  
Jozef Jurko ◽  
Anton Panda ◽  
Marcel Behún
Keyword(s):  
Stainless Steel ◽  
Tool Wear ◽  
Stainless Steels ◽  
Cutting Tool ◽  
Cutting Speed ◽  
Austenitic Stainless Steels ◽  
Depth Of Cut ◽  
Carbide Tool ◽  
Cutting Zone ◽  
Coated Carbide

This article presents conclusions of use TiAlN at drilling of a new austenitic stainless steels. This article presents the results of experiments that concerned the verification of the cutting tool wear. The results of cutting zone evaluation under cutting conditions (cutting speed vc=60 m/min, depth of cut ap= 3.0 mm and feed f= 0.04 mm per rev.) .

Verification of Chips Creating as an Indicator of Machinability in Turning of a New Steel X2cr12ni12motin

2012 ◽  
Vol 500 ◽  
pp. 9-13
Author(s):  
Mário Gajdoš ◽  
Andrej Berdis ◽  
Ján Gecák ◽  
Milan Mičko ◽  
Tadeaš Kurilovský
Keyword(s):  
Stainless Steels ◽  
Feed Rate ◽  
Austenitic Stainless Steels ◽  
Theory And Practice ◽  
Machining Process ◽  
Solid Carbide ◽  
Cutting Zone ◽  
Carbide Insert ◽  
Cutting Speeds

Precise and reliable information on the machinability of a material before it enters the machining process is a necessity, and hypotheses must be tested through verification of actual methods. This article presents conclusions of machinability tests on a new austenitic stainless steels X2Cr12Ni12MoTiN and describes appropriate parameters for the cutting zone during the process of turning. The content of this article also focuses on the analysis of selected basic indicators of steel machinability: quality of the processed surface. The results of the article are conclusions for working theory and practice for turning of austenitic stainless steels. Based on the cutting tests, cutting speeds of 80 to 200 m/min, feed rate of 0.05 to 0.2 mm and solid carbide insert WNMG 080404-NF.

scholarly journals Increasing the Efficiency of Milling Stainless Steels by Using a Modified Lubricant-Cooling Fluid

2021 ◽  
Vol 346 ◽  
pp. 01046
Author(s):  
Vladimir Skakun ◽  
Eldar Vaniev
Keyword(s):  
Oleic Acid ◽  
Stainless Steels ◽  
Cutting Forces ◽  
End Milling ◽  
Minimum Quantity Lubrication ◽  
Cutting Fluid ◽  
Special Device ◽  
Continuous Mixing ◽  
Lubricating Film ◽  
Cutting Zone

This paper considers the possibility of increasing the efficiency of the blade processing process by reducing the cutting forces during end milling by using a modified cutting fluid, which is based on a water-miscible cutting fluid. The conditions for the effective use of modified coolant in the processing of stainless steels were determined, as a result of which there is a decrease in cutting forces, and therefore a decrease in vibrations, which contributes to an increase in the quality of manufactured products. A decrease in cutting forces is associated with the presence in the modified cutting fluid of oleic acid containing surfactants, which form a dense lubricating film on the surface of the cutting tool. When mixing oleic acid in a water-miscible cutting fluid, a special soap solution is additionally used, which significantly improves the solubility, however, over time, oleic acid is separated from the total volume and tends to the surface. To ensure the homogeneity of the medium, a special device has been developed that allows continuous mixing of the compositions, due to the presence of impellers with a differently oriented arrangement of blades. To save lubricant, in the process of research, the technology of minimum quantity lubrication (MQL) was applied, using the Noga Minicool device, which allows portionwise (dosed) supply of lubricant to the cutting zone.

Study Accompanying Phenomenas at the Cutting Zone during Drilling Austenitic Stainless Steel X02Cr20Ni8TiMo

2014 ◽  
Vol 607 ◽  
pp. 149-152
Author(s):  
Jozef Jurko ◽  
Anton Panda ◽  
Marcel Behún
Keyword(s):  
Plastic Deformation ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Stainless Steels ◽  
Cutting Tools ◽  
Poor Quality ◽  
Low Carbon ◽  
Cutting Zone ◽  
Basic Hypothesis ◽  
Operational Tool

The The basic hypothesis of this article focuses on the study of accompanying phenomenas in the cutting zone of the stainless steels, with regard to the elimination of occurrence of poor-quality holes when drilling into new austenitic ELC (Extra Low Carbon) stainless steels. The problem of drilling holes with diameter D=1 to 9 mm resides in the fact that 20 to 28 % of these holes do not comply with prescribed requested requirements. The result of the deformation is very often the unforeseen destruction of the cutting tools; therefore their operational tool life is reduced. This article presents the results of experiments focusing on the study of the plastic deformation of the chips, at drilling with diameter d=5 mm when drilling into a new austenitic ELC stainless steels. This study also includes an analysis of accompanying phenomena in the cutting zone by measuring some selected parameters. The results of the experiments were compared with Cr18Ni8 steel and then verified when drilling holes into specific products.

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