Optimization of machining conditions with D type cutting tools using Taguchi technique

2021 ◽  
Author(s):  
T.S. Siddaligaprasad ◽  
H.S. Shivashankar ◽  
T.M. Chandrashekharaiah ◽  
Basavaraj Ganiger
Keyword(s):  
Cutting Tools ◽  
Taguchi Technique ◽  
Machining Conditions

The Influence of Machining Condition Forming Multilayer Coatings for Cutting Tools

2011 ◽  
Vol 496 ◽  
pp. 80-85 ◽  
Author(s):  
V.P. Tabakov
Keyword(s):  
Cutting Tools ◽  
Multilayer Coatings ◽  
Wear Resistant ◽  
Wear Resistant Coatings ◽  
Machining Conditions ◽  
Study Results ◽  
Coatings For Cutting Tools

The study has shown a correlation between the machining conditions and peculiarities of damage occurring to wear-resistant coatings in the process of cutting. The study has made it possible to formulate requirements for wear-resistant coatings and the principle of forming multilayer coatings depending on machining conditions. The article presents study results illustrating the efficiency of cutting tools with multilayer coatings.

Machinability of Pearlitic Cast Iron With Cubic Boron Nitride (CBN) Cutting Tools

2002 ◽  
Vol 124 (4) ◽  
pp. 820-832 ◽  
Author(s):  
Jiancheng Liu ◽  
Kazuo Yamazaki ◽  
Hiroyuki Ueda ◽  
Norihiko Narutaki ◽  
Yasuo Yamane
Keyword(s):  
Cast Iron ◽  
Boron Nitride ◽  
Tool Wear ◽  
High Speed ◽  
Cubic Boron Nitride ◽  
Cutting Tools ◽  
Cutting Temperature ◽  
Cutting Speed ◽  
Machining Conditions ◽  
Machining Center

In order to increase the accurate finishing productivity of pearlitic cast iron, face milling by CBN (Cubic Boron Nitride) cutting tools was studied. The main focus of the study is the machinability investigation of pearlitic cast iron with CBN cutting tools by studying the relationships among machining conditions such as feed rate, cutting speed as well as CBN cutting tool type, tool wear, workpiece surface quality, cutting forces, and cutting temperature. In addition, an emphasis is put on the effect of Al additive in pearlitic cast iron on its machinability and tool wear characteristics. High-speed milling experiments with CBN cutting tools were conducted on a vertical machining center under different machining conditions. The results obtained provide a useful understanding of milling performance by CBN cutting tools.

Efficiency Comparison of Cutting Strategies for End Milling Processes Under Feedrate Scheduling

2008 ◽  
Vol 2 (5) ◽  
pp. 377-383 ◽  
Author(s):  
Soichi Ibaraki ◽  
◽  
Atsushi Matsubara ◽  
Masanori Murozumi ◽  
Keyword(s):  
High Speed ◽  
Job Shop ◽  
End Milling ◽  
Cutting Tools ◽  
Depth Of Cut ◽  
High Speed Cutting ◽  
Machining Conditions ◽  
Feedrate Scheduling ◽  
Major Player ◽  
Manufacturing Applications

Technical advances in high-speed machining centers and cutting tools have made high-speed cutting a major player in manufacturing applications, but high-speed cutting provides higher machining efficiency only when machining conditions are appropriately set. In contrast, expert job shop operators often choose a heavy cutting strategy subject to higher depth of cut and a lower feedrate. Feedrate scheduling schemes are widely recognized as practically feasible for optimizing machining conditions in high-speed cutting. We compared the productivity of high-speed milling and heavy milling, assuming that using feedrate scheduling optimizes machining conditions. Possible cutting strategies are interpreted as constraints on cutting conditions or cutting performance, then machining conditions are scheduled optimally to maximize the productivity. A case study illustrates these points.

Performance Analysis of Cryogenically Treated HSS Profile Cutter by Experimental and FEA

2013 ◽  
Vol 816-817 ◽  
pp. 311-316
Author(s):  
B.R. Ramji ◽  
H.N. Narasimha Murthy ◽  
B.K. Deepak
Keyword(s):  
Performance Analysis ◽  
Temperature Profile ◽  
Tool Life ◽  
Cutting Tool ◽  
Cryogenic Treatment ◽  
Cutting Tools ◽  
Spring Steel ◽  
Machining Conditions ◽  
Double Tempering ◽  
Steel Cutting

The main objective of the research was to study the effect of cryogenic treatment and double tempering on the tool life of HSS profile cutter in machining EN47 Spring Steel cutting tool components. TiAlN coated HSS profile cutters were cryogenically treated at-175 °C and double tempered at 200 °C. Milling exercises were carried out using un-treated and treated and double tempered tools on EN-47 spring steel reamer components at different machining conditions. The treated HSS profile cutter showed 40 % greater tool life than that of the un-treated in machining EN-47 spring steel components for making flutes. FEA for temperature profile of the cutting tools of the treated and non-treated was performed. Tool tip temperature for untreated and treated were found to be 22 °C and 20 °C respectively.

scholarly journals Optimization of milling parameters of ASTM a 995 grade 4A Duplex Stainless Steel using Taguchi Technique

2019 ◽  
Vol 8 (3) ◽  
pp. 5840-5843
Keyword(s):  
Stainless Steel ◽  
Tool Wear ◽  
Duplex Stainless Steel ◽  
Cutting Force ◽  
Surface Finish ◽  
Important Variable ◽  
Spindle Speed ◽  
Taguchi Technique ◽  
Milling Parameters ◽  
Machining Conditions

This work explains the optimization of milling variables of duplex stainless steel by employing Taguchi technique. The milling tests are carried out at three levels of feeds and spindle speeds. The average of results and ANOVA are employed to investigate the machining performances. The results exposed that the feed and spindle speed are the most important variables influencing the cutting force and surface finish. It is determined that, the spindle speed is the most important variable influencing the tool wear. Confirmation tests are conducted at optimum machining conditions in order to verify the predicted results and the error is within 5%.

Investigating the Effect of Tic Coating Layer on the Surface Roughness of Tungsten Carbide Cutting Tools Using Taguchi Design

2021 ◽  
Vol 19 (12) ◽  
pp. 30-36
Author(s):  
Zuhair I. Al Mashhadani ◽  
Muneam Hussein Ali
Keyword(s):  
Surface Roughness ◽  
Coating Layer ◽  
Cutting Tools ◽  
Polynomial Equation ◽  
Taguchi Design ◽  
Depth Of Cut ◽  
Linear Quadratic ◽  
Machined Surface ◽  
Machining Conditions ◽  
Taguchi Design Of Experiments

In this study, external longitudinal turning operation was performed on (AISI 1020) steel to examine the influences of coating of the cutting tool on the machined surface roughness. The cutting tools used were coated and uncoated cemented carbide inserts. The tests are performed at four spindle speeds (80, 315, 500, and 800) rpm, at each of which two feed rates (0.2 and 0.5mm/rev) and two depth of cut (0.5 and 0.7mm) were used. Taguchi design of experiments (DOE) with a designed mathematical predictive model was used to investigate the effect of the coating layer and determine the machining conditions for minimum surface roughness. Accordingly, a suitable mixed orthogonal array L16 (3*4) was selected. The results showed that the surface roughness produced by using TiC coated inserts for identical machining conditions was lower than that produced due to uncoated tool by 41% to 53%. Regression analysis showed that the non-linear quadratic polynomial equation appears to be more suitable for representing the relation of spindle speed, feed rate, and depth of cut with the surface roughness. Taguchi method and the designed mathematical model had been used to predict the optimal cutting conditions. A confirmation test for the obtained results verified that the designed Taguchi experiments and the designed model successfully investigated the effect of the coating on the surface roughness. Data fit ver.9 and Mtb14 software had been employed to achieve the object of the presented work.

Effects of Machining Parameters on the Microhardness of Chips

1989 ◽  
Vol 111 (3) ◽  
pp. 220-228 ◽  
Author(s):  
V. K. Jain ◽  
S. Kumar ◽  
G. K. Lal
Keyword(s):  
Shear Strain ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Shear Angle ◽  
Interface Temperature ◽  
Machining Parameters ◽  
Machining Conditions ◽  
Temperature Shear ◽  
Longitudinal Turning ◽  
Microhardness Tester

It has been found that the shear strain acceleration governs the machining parameters like tool-chip interface temperature, shear angle, tool wear, etc. It is therefore speculated that microhardness of the chips for the same machining conditions but for different shear strain accelerations would be different. To test this hypothesis, experiments have been conducted using mild steel as work material and cemented carbide bits as cutting tools. Experiments were performed in two ways: longitudinal turning and accelerated cutting. Chips were collected at the same machining conditions but at different shear strain acceleration. Microhardness of the chips has been measured using the Leibtz-microhardness tester and the results have been analyzed using a computer program CADEAG-1. Using the responses (i.e., microhardness), mathematical models have been evolved. Effects of different parameters (cutting speed, feed, etc.) on the microhardness of the chips in all the three cases (i.e., longitudinal turning, facing, and taper turning) have been studied. It has been concluded that the microhardness of the chips obtained during accelerated cutting is governed by the shear strain acceleration and its governing parameters.

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