scholarly journals Analysis of the Effect of Wire Electric Dischage Machining Process Parameters for the Formation of High Speed Steel Form Tool

2018 ◽  
Vol 12 (1) ◽  
pp. 89-98 ◽  
Author(s):  
Kashif Ishfaq ◽  
Nadeem Mufti ◽  
Jawad Ahmad ◽  
Muhammad Sajid ◽  
Mirza Jahanzaib
Keyword(s):  
Process Parameters ◽  
High Speed ◽  
High Speed Steel ◽  
Machining Process

Granulation of Extruded Plastic Wires: Influence of Tool Coating Properties and Tool Geometry on Cutting Forces and Tool Wear

2016 ◽  
Vol 1140 ◽  
pp. 181-188
Author(s):  
Macario Cardone ◽  
Matthias Putz ◽  
Gerhard Schmidt ◽  
Martin Dix ◽  
Jürgen Friedrich ◽  
...  
Keyword(s):  
High Speed ◽  
High Speed Steel ◽  
Polyamide 6 ◽  
Machining Process ◽  
Test Facility ◽  
Tool Geometry ◽  
Coated Tools ◽  
Tool Coating ◽  
Before And After ◽  
Wear Evaluation

Granulators are widely used to reduce reinforced and unreinforced plastic strands in small pieces. The tools implemented in this machining process are mainly made of high-speed steel. This work investigates diverse PVD hard thin coatings with the aim of improving tool life and efficiency in granulation technology. A test facility reproducing the main features of a real granulator has been designed and assembled. The machined strand materials are ABS plastic and fibreglass-reinforced polyamide 6, while the tested PVD films are CrN, TiCN, TiAlN and two different diamond-like carbon coatings. The wear evaluation of all coated tools has been done via structured light projection, together with a scanning electron microscopy-based analysis, before and after their implementation on the test facility. Furthermore, a suitable 2D finite element modelling of the machining process has been realized.

scholarly journals Optimization of Boring Process Parameters in Manufacturing of Polyacetal Bushing using High Speed Steel

2019 ◽  
Vol 130 ◽  
pp. 01031 ◽  
Author(s):  
The Jaya Suteja ◽  
Yon Haryono ◽  
Andri Harianto ◽  
Esti Rinawiyanti
Keyword(s):  
Surface Roughness ◽  
Process Parameters ◽  
Feed Rate ◽  
High Speed ◽  
Removal Rate ◽  
High Speed Steel ◽  
Cutting Edge ◽  
Depth Of Cut ◽  
Optimum Result ◽  
Edge Angle

Polyacetal is commonly used as bushing material because of its low coefficient of friction and self lubricant characteristics. The polyacetal is machined by using boring process to produce bushing in certain surface roughness. The objectives of this research are to optimize three independent parameters (depth of cut, feed rate and principal cutting edge angle) of boring process of polyacetal using high speed steel tool to achieve the highest material removal rate and the required surface roughness. Response Surface Methodology is used to investigate the influence of the parameters and optimize the boring process. The research shows that the influence of the boring process parameters on polyacetal is similar compared to on metal. The result reveals that the optimum result is achieved by applying the value of depth of cut, feed rate, and principal cutting edge angle is 2.9 × 10–3 m, 0.229 mm rev–1, and 99.1° respectively. By applying these values, the maximum material rate removal achieved in this research is 1263.4 mm3 s–1 and the surface roughness achieved is 1.57 × 10–6 m.

scholarly journals Analysis of the Performance of Drilling Operations for Improving Productivity

2021 ◽  
Author(s):  
Majid Tolouei-Rad ◽  
Muhammad Aamir
Keyword(s):  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Dimensional Accuracy ◽  
Vital Role ◽  
Machining Process ◽  
Drilling Process ◽  
Single Shot ◽  
Drilling Operations

Drilling is a vital machining process for many industries. Automotive and aerospace industries are among those industries which produce millions of holes where productivity, quality, and precision of drilled holes plays a vital role in their success. Therefore, a proper selection of machine tools and equipment, cutting tools and parameters is detrimental in achieving the required dimensional accuracy and surface roughness. This subsequently helps industries achieving success and improving the service life of their products. This chapter provides an introduction to the drilling process in manufacturing industries which helps improve the quality and productivity of drilling operations on metallic materials. It explains the advantages of using multi-spindle heads to improve the productivity and quality of drilled holes. An analysis of the holes produced by a multi-spindle head on aluminum alloys Al2024, Al6061, and Al5083 is presented in comparison to traditional single shot drilling. Also the effects of using uncoated carbide and high speed steel tools for producing high-quality holes in the formation of built-up edges and burrs are investigated and discussed.

The Comprehensive Comparison of the Selected Cutting Materials with Standard ISO 3685 in Machining Process of Steel C60

2014 ◽  
Vol 718 ◽  
pp. 93-98 ◽  
Author(s):  
Ján Duplák ◽  
Michal Hatala ◽  
Jozef Zajac ◽  
Karol Vasilko ◽  
Miroslav Kormoš ◽  
...  
Keyword(s):  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Machining Process ◽  
Engineering Practice ◽  
Technical Standards ◽  
Sintered Carbide ◽  
Cutting Ceramic ◽  
Comprehensive Comparison ◽  
Steel Cutting

The main part of Standard ISO 3685 is T-vc dependence for various cutting materials. The Standard ISO 3685 contains main properties and characteristics for three most important cutting materials those are used in engineering practice. These cutting materials are used for cutting tools made of high speed steel, cutting ceramic and sintered carbide. Some types of cutting materials are defined by means of descriptions in standards ISO, some types by means of catalogues from the manufacturer. There are a lot of types of cutting materials they have not been defined theirs properties exactly yet and theirs properties have to be defined on experiments. There is a presumption that descriptions in standards ISO are not correct and these standards have to be examined and verified, because that this fact have to be confirmed or disproved. Accuracy and completeness technical standards ISO are very important part quality of manufacturing. Article describes process how to define T-vc dependence for cutting tools made of high speed steel, cutting ceramic and sintered carbide, because were found deficiencies in valid standard ISO 3685.

Durability Analysis for Selected Cutting Tools in Machining Process of Steel 16MoV6-3

2013 ◽  
Vol 308 ◽  
pp. 133-139 ◽  
Author(s):  
Ján Duplák ◽  
Michal Hatala ◽  
Peter Michalik
Keyword(s):  
High Speed ◽  
Cutting Tool ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Machining Process ◽  
Technical Science ◽  
Sintered Carbide ◽  
Durability Analysis ◽  
Tool Durability

Durability of cutting tool defines lifetime of this cutting tool and it determines its suitability for select technological operation. Technical science defines a lot of different factors, that they may be cause of shorter cutting tool lifetime. For increase cutting tool durability is necessary maximally possible elimination of these factors. Determination of cutting tool durability is very important, because provides comprehensive information how to determine appropriate technological conditions for selected cutting tool. In engineering is for determination of cutting tools durability used T-vc dependence. Durability of cutting tools is defined in standard ISO 3685. In standard ISO 3685 is defined T-vc dependence for different cutting materials and standard included process evaluation of tool durability for cutting materials made of high speed steel, sintered carbide and cutting ceramic. Specification of cutting tools durability in machining process of steel 16MoV6-3 is very important for economics of small and medium-sized enterprises, because cutting tool durability is factor that significantly affects the budget of these enterprises. Standard ISO 3685 contains instructions how to create T-vc dependence for cutting tools. In this standard are only instructions how to create T-vc dependence according to Mr. Taylor. The article describes process how to create durability dependence for cutting tools made of sintered carbide in machining process of 16MoV6-3 by means of T-vc dependence.

Analysis of Micro-Pin Manufacturing Using Inverse Slab Electrical Discharge Milling (ISEDM) Process

2011 ◽  
Vol 496 ◽  
pp. 247-252 ◽  
Author(s):  
Ruben Gil ◽  
J.A. Sánchez ◽  
N. Ortega ◽  
S. Plaza ◽  
B. Izquierdo ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Electrical Discharge ◽  
High Speed ◽  
Electrical Discharge Machining ◽  
Removal Rate ◽  
High Speed Steel ◽  
Machining Process ◽  
Work Piece ◽  
Electrode Wear ◽  
Pulse Off Time

Abstract. This paper analyses the technological capabilities of a novel rotary (EDM) electrical discharge machining process for the manufacturing of high aspect ratio cylindrical micro-components. The process is called Inverse Electrical Discharge Grinding (ISEDM). An experimental analysis has been carried out on high speed steel (tool steel Vanadis 23), using a conventional EDM machine and graphite electrode. The effect of pulse off-time, work piece final diameter and machining length on material removal rate, electrode wear ratio, radial accuracy and surface roughness has been quantified. From the study, optimum strategies that involve the use of different EDM regimes for achieving the optimum requirements can be defined. Micro-pins of 0.3 mm diameter with aspect ratio as high as 100:1 have been successfully manufactured.

Evaluation of Forces, Tool Wear and Surface Finish During Orthogonal Machining AISI 1020 Steel in Three Cutting Environments

2013 ◽  
Author(s):  
Vishnu Vardhan Chandrasekaran ◽  
Lewis N. Payton
Keyword(s):  
Tool Wear ◽  
Surface Finish ◽  
High Speed ◽  
Tool Material ◽  
High Speed Steel ◽  
Machining Process ◽  
Depth Of Cut ◽  
Work Piece ◽  
Average Roughness ◽  
Labview Software

A large statistically designed orthogonal tube turning experiment measuring the forces, tool wear and surface finish involved in machining of AISI 1020 steel under four different cutting environments. The environments studied were nitrogen and cold compressed air against dry machining. Each data run consisted of one minute cutting time at two different feeds of 0.002″/rev. and 0.004″/rev. at a constant depth of cut of 0.125″ width of cut using High speed steel tool material inserts. Post-mortem analysis was carried out under a Keyance microscope to evaluate the wear on the rake face. The cutting force and the thrust force are collected during the machining process with a dynamometer and the data is further processed using Labview software. The surface finish on the work piece after the cutting process is also evaluated based on the average roughness measurement taken from a contact type profilometer. The advantages of using such gaseous cutting fluids are discussed.

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