Dynamic Analysis of Boring Bar for Advancement of Tool Life While Lessen the Machining Time Through FEA

2020 ◽  
pp. 501-507
Author(s):  
Shweta Sonkar ◽  
Prabhat Kumar Sinha
Keyword(s):  
Dynamic Analysis ◽  
Tool Life ◽  
Machining Time ◽  
Boring Bar

PRODEC STAINLESS TYPE 316

Alloy Digest ◽  
1993 ◽  
Vol 42 (9) ◽  
Keyword(s):  
Physical Properties ◽  
Tool Life ◽  
Surface Finish ◽  
Laboratory Testing ◽  
Machining Time ◽  
Aisi Type

Abstract PRODEC STAINLESS TYPE 316 is a standardized grade in plate and bar with an improved machining capability over the conventional AISI Type 316. It is a product of extensive laboratory testing and application proven. Its improved machinability offers: shorter machining time; longer tool life; better surface finish; less distortion problems; more homogeneity in microstructures; and marginally increased resistance to corrosion. This datasheet provides information on composition and physical properties. It also includes information on machining. Filing Code: SS-549. Producer or source: Avesta Sheffield Inc.

PROJECT 70/PROJECT 7000 STAINLESS TYPE 303

Alloy Digest ◽  
1997 ◽  
Vol 46 (6) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Tool Life ◽  
Stainless Steels ◽  
Heat Treating ◽  
Machining Time ◽  
Type Machine

Abstract Project 70 stainless type 303 and Project 7000 stainless type 303 are free-machining stainless steels of the austenitic chromium-nickel type. They offer significantly improved machinability and longer tool life. These steels are suited particularly for automatic bar-machine and Swiss-type machine operations where longer tool life results in more productive machining time. Applications include shafts, valve bodies, valves, valve trim, and fittings. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness and creep. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-409. Producer or source: Carpenter. Originally published June 1982, revised June 1997.

Technological Investigation of Effect of Machining Parameter on Tool Life

2020 ◽  
Vol 22 (4) ◽  
pp. 41-53
Author(s):  
Manojkumar Sheladiya ◽  
◽  
Shailee Acharya ◽  
Ghanshyam Acharya ◽  
◽  
...  
Keyword(s):  
Surface Roughness ◽  
Mild Steel ◽  
Tool Life ◽  
Flank Wear ◽  
Cutting Speed ◽  
Numerical Control ◽  
Cutting Fluid ◽  
Depth Of Cut ◽  
Machining Time ◽  
Machining Parameter

Introduction. The machinability is typical criteria to be investigated and different authors suggested different parameters describing its quantification. Different parameters i. e. speed, feed, depth of cut, tool work-piece combination, machine types and its condition, cutting fluid, machinist expertise, etc. are contributing directly to the tool life. The selection of the tool for the machining impacts greatly on the economic viability of the machining in terms of energy usage and tooling costs. The method of investigation. The current research emphasis mainly on tool life investigation when machining the mild steel specimens ISRO 50, BIS 1732:1989 at constant cutting speed i.e. 200 m / min. In the industries the mild steel material is commonly used for various products manufacturing. Considering the high demands on productivity and surface finish, machining at 200 m / min is the preferred. The computerized numerical control machine (CNC DX-150) is used for the turning. The four corner insert (TNMG 120408) is used for different machining times i.e. 10, 15, 20 and 25 minutes respectively. The flank wear of the tool is measured with calibrated optical microscope. The temperature of the tool corner during machining is continuously measured for possible impact of temperature on bonding properties of the tool insert and impact on red hardness. Results and discussion. The plot of flank wear vs. machining time will give the value of tool life. The other quality output parameter, such as surface roughness, is measured after machining, indicating surface irregularities in root means square value. Efforts have been made to identify the relationship of tool life, machining time, the quantity of metal removed, surface roughness, and tool bit temperature.

scholarly journals 3D MODELING, SIMULATION AND ANALYSIS OF ANTI-VIBRATION BORING BAR

2021 ◽  
Vol 3 ◽  
pp. 310-313
Author(s):  
Sabi Sabev ◽  
Plamen Kasabov
Keyword(s):  
Finite Elements ◽  
Dynamic Analysis ◽  
3D Modeling ◽  
Virtual Prototype ◽  
Finite Elements Method ◽  
Design Stage ◽  
Boring Bar ◽  
Modeling Simulation ◽  
Cae System

This study presents the capabilities of the engineering dynamic analysis according to the Finite Elements Method (FEM), demonstrated on a 3D virtual prototype of a part "Anti-vibration boring bar" for lathe. The analysis is performed with help of CAE system Ansys. The modal frequencies are determined which are necessary for optimizing the constructive parameters of the product during the design stage.

scholarly journals The effect of changes in depth of cut and cutting speed of CNC toolpaths on turning process performance

2018 ◽  
Vol 38 (1) ◽  
pp. 40-44
Author(s):  
Krzysztof Jarosz ◽  
Piotr Niesłony ◽  
Piotr Löschner
Keyword(s):  
Cutting Force ◽  
Tool Life ◽  
Cutting Speed ◽  
Machining Process ◽  
Depth Of Cut ◽  
Process Performance ◽  
Turning Process ◽  
Machining Time ◽  
Toolpath Optimization ◽  
The Impact

Abstract In this article, a novel approach to computer optimization of CNC toolpaths by adjustment of cutting speed vcand depth of cut apis presented. Available software works by the principle of adjusting feed rate on the basis of calculations and numerical simulation of the machining process. The authors wish to expand upon this approach by proposing toolpath optimization by altering two other basic process parameters. Intricacies and problems related totheadjustment of apand vcwere explained in the introductory part. Simulation of different variant of the same turning process with different parameter values were conducted to evaluate the effect of changes in depth of cut and cutting speed on process performance. Obtained results were investigated on the account of cutting force and tool life. The authors have found that depth of cut substantially affects cutting force, while the effect of cutting speed on it is minimal. An increase in both depth of cut and cutting speed affects tool life negatively, although the impact of cutting speed is much more severe. An increase in depth of cut allows for a more significant reduction of machining time, while affecting tool life less negatively. On the other hand, the adjustment of cutting speed helpsto reduce machining time without increasing cutting force component values and spindle load.

Ductile Mode Turning of Brittle Materials and its Practical Aspects

2013 ◽  
Vol 651 ◽  
pp. 350-354 ◽  
Author(s):  
Alokesh Pramanik ◽  
Animesh Basak
Keyword(s):  
Tool Wear ◽  
Ultrasonic Vibration ◽  
Tool Life ◽  
Brittle Material ◽  
Laser Heating ◽  
Brittle Materials ◽  
Machining Time ◽  
Main Obstacle ◽  
Ductile Machining ◽  
Ductile Mode

This paper aims to investigate the mechanism of ductile machining of brittle material based on information available in the literature. It also explores the challenges associated with the ductile machining of brittle materials which stop the technology from being applied in practical fields. In addition, few factors that assist to improve productivity of ductile machining of brittle material have been discussed. It is found the higher tool wear is the main obstacle of this technology. The application ofmicro-laser heating,ultrasonic vibration and coolants improve the machining time and tool life significantly.

A Multi-Tip Turning Tool Structure for Thin and Long Pieces

2013 ◽  
Vol 683 ◽  
pp. 841-844
Author(s):  
Song Hao Wang ◽  
Wei Bin Chen
Keyword(s):  
Tool Life ◽  
Cutting Forces ◽  
Cutting Tools ◽  
Cutting Edge ◽  
Turning Process ◽  
Machining Time ◽  
Cnc Turning

This paper presents the development of a Multi-Tip Tool Structure for fast turning process, to prolong overall tool life as well as to shorten machining time. Instead of one cutting edge in regular turning process, several cutting tools are used simultaneously in this assembly. With this arrangement, radial cutting forces are balanced with each other and the steady or follower rests in a regular lathe can be eliminated, for long and thin work pieces. Make the tooling structure more compact and more feasible for multi-head CNC turning or combo machining.

scholarly journals Comparison between a conventional and an antivibrating boring bar in the internal turning of long overhangs

2020 ◽  
Vol 10 (2) ◽  
pp. 145-149
Author(s):  
Thomas Wallyson ◽  
Zsombor Fülöp ◽  
Attila Szilágyi
Keyword(s):  
Surface Quality ◽  
Tool Life ◽  
Hardened Steel ◽  
Workpiece Surface ◽  
Boring Bar

The main objective of this work is to evaluate the use of an antivibrating in an internal turning tool in the machining of hardened steel, comparing it with a conventional solid bar, in order to verify if it is able to cut deep holes without damaging workpiece surface quality and tool life.

scholarly journals Performance Comparison of Cryogenic Treated Tool Vs Untreated Tool using an Accelerometer Sensor

2020 ◽  
Vol 10 (2) ◽  
pp. 12-14
Keyword(s):  
Carbon Steel ◽  
Tool Life ◽  
Surface Finish ◽  
Performance Comparison ◽  
Medium Carbon Steel ◽  
Depth Of Cut ◽  
Machining Time ◽  
Accelerometer Sensor ◽  
Medium Carbon

In this paper, performance of the Cryogenic treated tool along with the untreated tool is investigated in turning of En8 Medium carbon steel. Results are got by comparing parameters of vibration in tool. For vibration Accelerometer sensor, it is used to find the Acceleration of tool in X, Y and Z axis for incremental depth of cut. The cryogenic tool has lesser machining time, increased tool life and surface finish due to the reduced vibration than the untreated tool.

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