scholarly journals Tool life and cutting speed for the maximum productivity at the drilling of the stainless steel X22CrMoV12-1

2015 ◽  
Vol 95 ◽  
pp. 012021
Author(s):  
A Vlase ◽  
O Blăjină ◽  
M Iacob ◽  
V Darie
Keyword(s):  
Stainless Steel ◽  
Tool Life ◽  
Cutting Speed ◽  
Maximum Productivity

Model for Optimization of the Tool Life and the Cutting Speed for Maximum Productivity at Drilling of the Steel 2NiCr185

2015 ◽  
Vol 760 ◽  
pp. 433-438 ◽  
Author(s):  
Ovidiu Blăjină ◽  
Aurelian Vlase ◽  
Marius Iacob
Keyword(s):  
Mathematical Model ◽  
Stainless Steel ◽  
Tool Life ◽  
Stainless Steels ◽  
Cutting Tool ◽  
Cutting Speed ◽  
Research Directions ◽  
Maximum Productivity ◽  
Optimum Cutting ◽  
New Research

The research in the last decade regarding their cutting machinability have highlighted the insufficiency of the data for establishing of the optimum cutting processing conditions and the optimum cutting regime. The purpose of this paper is the optimization of the tool life and the cutting speed at the drilling of the stainless steels in terms of the maximum productivity. A nonlinear programming mathematical model to maximize the productivity at the drilling of a stainless steel is developed in this paper. The optimum cutting tool life and the associated cutting tool speed are obtained by solving the proposed mathematical model. The use of this productivity model allows greater accuracy in the prediction of the productivity for the drilling of a certain stainless steel and getting the optimum tool life and the optimum cutting speed for the maximum productivity. The obtained results can be used in production activity, in order to increase the productivity of the stainless steels machining. Finally the paper suggests new research directions for the specialists interested in this field.

Optimum Tool Life and Cutting Speed for the Maximum Productivity at the Drilling of the Steel X6CrNiTi18-10

2013 ◽  
Vol 837 ◽  
pp. 28-32
Author(s):  
Ovidiu Blăjină ◽  
Aurelian Vlase ◽  
Vlad Darie
Keyword(s):  
Stainless Steel ◽  
Tool Life ◽  
Stainless Steels ◽  
Cutting Tool ◽  
Programming Model ◽  
Cutting Speed ◽  
Maximum Productivity ◽  
Optimum Cutting ◽  
Nonlinear Programming Model ◽  
New Research

The research in the last decade regarding their cutting machinability have highlighted the insufficiency of the data for establishing of the optimum cutting processing conditions and the optimum cutting regime. The purpose of this paper is the optimization of the tool life and the cutting speed at the drilling of the stainless steels in terms of the maximum productivity. A nonlinear programming model to maximize the productivity at the drilling of a stainless steel is developed in this paper. The optimum cutting tool life and the associated cutting tool speed are obtained by solving the proposed mathematical model. The use of this productivity model allows greater accuracy in the prediction of the productivity for the drilling of a certain stainless steel and getting the optimum tool life and the optimum cutting speed for the maximum productivity. The obtained results can be used in production activity, in order to increase the productivity of the stainless steels machining. Finally the paper suggests new research directions for the specialists interested in this field.

Model for Optimization of the Tool Life and the Cutting Speed for Maximum Productivity at Drilling of the Steel X5CrNiMo17-12-2

2015 ◽  
Vol 809-810 ◽  
pp. 69-74
Author(s):  
Marius Iacob ◽  
Ovidiu Blăjină ◽  
Aurelian Vlase
Keyword(s):  
Mathematical Model ◽  
Stainless Steel ◽  
Tool Life ◽  
Stainless Steels ◽  
Cutting Tool ◽  
Cutting Speed ◽  
Research Directions ◽  
Maximum Productivity ◽  
Optimum Cutting ◽  
New Research

The research in the last decade regarding their cutting machinability have highlighted the insufficiency of the data for establishing of the optimum cutting processing conditions and the optimum cutting regime. The purpose of this article is the optimization of the tool life and the cutting speed at the drilling of the stainless steels in terms of the maximum productivity. A nonlinear programming mathematical model to maximize the productivity at the drilling of a stainless steel is developed in this paper. The optimum cutting tool life and the associated cutting tool speed are obtained by solving the proposed mathematical model. The use of this productivity model allows greater accuracy in the prediction of the productivity for the drilling of a certain stainless steel and getting the optimum tool life and the optimum cutting speed for the maximum productivity. The obtained results can be used in production activity, in order to increase the productivity of the stainless steels machining. Finally the paper suggests new research directions for the specialists interested in this field.

Experimental Study on Nano-TiAlN Coated Carbide Tools in Turning Austenitic Stainless Steel

2012 ◽  
Vol 723 ◽  
pp. 247-251
Author(s):  
Hai Dong Yang ◽  
Zhi Ding
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Tool Life ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Dry Cutting ◽  
Processing Efficiency ◽  
Machined Surface ◽  
Tool Wear Mechanism ◽  
Coated Carbide

Austenitic stainless steel has poor cutting performance, especially when the inappropriate choice of tool materials and cutting parameters, cutting tool life will be shortened and the quality of machined surface is poor. In this paper, 0Cr18Ni9 stainless steel dry cutting tests had been done with nano-TiAlN coated carbide blade YGB202, the relationship between tool life and cutting speed, tool wear mechanism had been analyzed. In order to improve the processing efficiency and tool life, process parameters were optimized.

Machining parameters effect in dry turning of AISI 316L stainless steel using coated carbide tools

2015 ◽  
Vol 231 (4) ◽  
pp. 676-683 ◽  
Author(s):  
Rusdi Nur ◽  
MY Noordin ◽  
S Izman ◽  
D Kurniawan
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
Power Consumption ◽  
Cutting Force ◽  
Tool Life ◽  
Cutting Speed ◽  
Cutting Fluid ◽  
Machining Parameters ◽  
Aisi 316L ◽  
Coated Carbide

Austenitic stainless steel AISI 316L is used in many applications, including chemical industry, nuclear power plants, and medical devices, because of its high mechanical properties and corrosion resistance. Machinability study on the stainless steel is of interest. Toward sustainable manufacturing, this study also includes the power consumption during machining along with other machining responses of cutting force, surface roughness, and tool life. Turning on the stainless steel was performed using coated carbide tool without using cutting fluid. The turning was performed at various cutting speeds (90, 150, and 210 m/min) and feeds (0.10, 0.16, and 0.22 mm/rev). Response surface methodology was adopted in designing the experiments to quantify the effect of cutting speed and feed on the machining responses. It was found that cutting speed was proportional to power consumption and was inversely proportional to tool life, and showed no significant effect on the cutting force and the surface roughness. Feed was proportional to cutting force, power consumption, and surface roughness and was inversely proportional to tool life. Empirical equations developed from the results for all machining responses were shown to be useful in determining the optimum cutting parameters range.

Effect of Cutting Parameters on Diamond Tool Life during Cutting Stainless Steel

2009 ◽  
Vol 626-627 ◽  
pp. 99-104 ◽  
Author(s):  
Zhi Min Zhou ◽  
Yuan Liang Zhang ◽  
J. Dong ◽  
X.Y. Li
Keyword(s):  
Stainless Steel ◽  
Ultrasonic Vibration ◽  
Tool Life ◽  
Diamond Tool ◽  
Natural Diamond ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Steel Alloy ◽  
Stainless Steel Alloy ◽  
The Impact

While using natural diamond tool to cut stainless steel alloy, the cutting parameters have a great impact on tool life. The impact of cutting parameters on influencing cutting tool life was studied through experiments on using ultrasonic vibration to cut special stainless steel alloy. The experiments were conducted with various cutting speeds, different tool feed rates, altered cutting depths and adapted vibration parameters. Consequently, the relative curve between cutting parameters and tool life was obtained. The experimental results indicated that in the ultrasonic vibration the diamond tool can manufacture stainless steel alloy precisely and made surface quality well. The tool life depended on the spindle speed of machine tool as well as the amplitude and frequency of ultrasonic vibration to a large extent. Among the parameters which affect the processing quality, cutting speed was utmost, followed by feed followed, and the influence of back cutting depth was insignificant.

scholarly journals Microdrilling of Biocompatible Materials

2012 ◽  
Author(s):  
Sankalp Mohanty ◽  
Stephen Wells ◽  
Wayne Hung
Keyword(s):  
Stainless Steel ◽  
Aspect Ratio ◽  
Tool Life ◽  
316L Stainless Steel ◽  
Pure Titanium ◽  
Cutting Speed ◽  
Hole Quality ◽  
Tool Failure ◽  
Drilling Parameters ◽  
Tool Performance

Product miniaturization trend is inevitable. The needs for minimum invasive surgery, smaller sensors for smart machinery, packing more features on a product… require mass production of smaller components from engineering materials. Fabrication of microcomponents requires knowledge of micromachining to avoid costly tool failure and part damage. This research investigates microdrilling of commercially pure titanium, nickel titanium (Nitinol), and 316L stainless steel. A surface was polished and drilled in rows of ten holes. Through hole drilling at 6:1 aspect ratio was performed on NiTi sheets while blind holes were drilled at 10:1 aspect ratio on Ti or 316L blocks. Microdrills with 100–150 μm diameter and 1.5–3.5 mm flute length were utilized up to 50,000 rpm in minimum quantity lubrication. Finite element models were developed to find upper limits of drilling parameters. Flank wear of 15μm on fine grained WC-Co uncoated tools and peeling of coating layer were used as tool life criteria. Scanning electron microscopy was used to observed tool failure mechanism. Tool life modeling and hole quality were performed to evaluate and compare tool performance. Although successfully drilling all materials at 10:1 aspect ratio, excessive built-up-edge (BUE) was found on microdrills at all drilling parameters. Such BUE effectively blunted the drill tips and caused drill wandering, degraded hole quality due to rubbing against the drilled wall, work-hardened the drilled surface and accelerated drill wear, and formed burrs at both entrance and exit ends. Wear of a microdrill at the outer corner was more pronounced when drilling CP titanium, but attrition wear at chisel edge was more significant for 316L stainless steel. The classical Taylor equation for macromachining was applicable in microdrilling to rank tool performance and machinability of tested materials. For the same cutting speed of 20 m/min and comparable drilling distance of about 35 mm, CP titanium can be microdrilled 400% faster than 316L stainless steel when applying 0.1 μm/flute chip load for the former and 0.02 μm/flute for the latter. The AlTiN coated drills improved tool life by at least 120%. This coating reduced BUE, drastically improved hole position accuracy by 115%, and decreased hole diameter variation from 0.110% to 0.003% for each mm of drilling distance.

Optimization of the Tool Life and the Cutting Speed in Terms of Productivity at Drilling of the Stainless Steel 10TiMoNiCr175

2013 ◽  
Vol 371 ◽  
pp. 13-17
Author(s):  
Aurelian Vlase ◽  
Ovidiu Blăjină ◽  
Bogdan Vlase
Keyword(s):  
Stainless Steel ◽  
Tool Life ◽  
Stainless Steels ◽  
Cutting Speed ◽  
Chemical Characteristics ◽  
Processing Conditions ◽  
Technological Properties ◽  
Physical Chemical ◽  
Optimum Cutting ◽  
Global Indicator

The stainless steels are used more and more in various key domains of the technique [. The processing of these steels is determined by their specific physical-chemical characteristics and by their technological properties [2, 3]. The research in the last decade regarding the cutting machinability of the stainless steels have highlighted the insufficiency of the data for establishing of the optimum cutting processing conditions and the optimum cutting regime [4, 5]. With this object in view, the purpose of this paper is the optimization of the tool life and the cutting speed at the drilling of the stainless steels, in terms of the global indicator of the maximum productivity.

Study on High Speed Milling of Steam Turbine Blade Materials

2016 ◽  
Vol 1136 ◽  
pp. 251-256
Author(s):  
Tomonori Kimura ◽  
Takekazu Sawa ◽  
Tatsuyuki Kamijyo
Keyword(s):  
Stainless Steel ◽  
Titanium Alloy ◽  
Steam Turbine ◽  
Turbine Blade ◽  
Tool Life ◽  
High Speed ◽  
Cutting Speed ◽  
High Speed Milling ◽  
Steam Turbine Blade ◽  
Cutting Point

A titanium alloy and stainless steel is an excellent material having properties such as high intensity and high corrosion resistance. Therefore, a titanium alloy and a stainless steel are used as material of steam turbine blade. However, the machining efficiency of a titanium alloy and a stainless steel is a low because of difficult-to-cut materials. Especially, it is a major problem that the cutting point temperature is high and the tool life is short. In the conventional study, it is reported that the cutting point temperature is low and the tool life becomes long by cutting at the suitable cutting speed corresponding to material characteristics. This concept is known as high speed milling. In recent years, the high speed milling is actually used for the metal mold machining. In this study, the high speed milling of the titanium alloy and the stainless steel was tried for the purpose of high efficiency cutting of a steam turbine blade. In the experiment, the cutting tool used the TiAlN coating radius solid end mill made of micro grain cemented carbide. The diameter of endmill is 5mm. The corner radius is 0.2mm. And, the work piece is the titanium alloy Ti-6Al-4V and stainless steel 13Cr. The cutting speed carried out at 100m/min~600m/min. As the result, when the tool life and the surface roughness was a valuation basis, the optimum cutting speed of titanium alloy was 300m/min. On the other hand, In the case of the stainless steel, the flank wear becomes large in proportion to cutting speed. The feature of high speed milling was not able to be confirmed in the range of this experimental condition.

Study on High Speed Milling of Steam Turbine Blade Materials - Difference in Cutting Characteristics by Alloying Elements of Stainless Steel

2016 ◽  
Vol 874 ◽  
pp. 439-444
Author(s):  
Tomonori Kimura ◽  
Takekazu Sawa ◽  
Tatsuyuki Kamijyo
Keyword(s):  
Stainless Steel ◽  
Steam Turbine ◽  
Tool Life ◽  
High Speed ◽  
Cutting Speed ◽  
End Mill ◽  
High Speed Milling ◽  
Point Temperature ◽  
Steam Turbine Blade ◽  
Cutting Point

In this study, high speed milling of stainless steel was tried for purpose of high efficiency cutting of a steam turbine blade. In the experiment, cutting tool used TiAlN coating radius solid end mill made of cemented carbide. Diameter of end mill is 5mm. Corner radius is 0.2mm. Cutting speed carried out at 100m/s~600m/s. Work pieces was used in the experiment are four kinds of stainless steel which alloy elements differ. Mainly, content of chromium and nickel is different. There are many researches about high speed milling [1, 2].However, the researches which examined relationship between alloy elements of stainless steel and cutting characteristics on high speed milling using small diameter endmill are few.As the results, in the case of stainless steel containing much nickel, tool life becomes short in high speed cutting area. This reason is nickel has low thermal conductivity. Because the cutting point temperature becomes higher. If the coating removes, wear becomes large rapidly. In other words, maximum limit value of cutting speed was found to be dependent on heat resistance temperature of the coating.On the other hand, Chromium has the effect of improving the abrasion resistant of the workpiece. However, Flank wear was not increased in a low cutting speed area. In the range of this experimental condition, chromium didn't influence tool life. When cutting point temperature is below heat resistant temperature of the coating, it is thought that effect of the coating is maintained. Namely, it was found that appropriate cutting speed followed heat resistant temperature of the coating.

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