Experimental Study on Wear Characteristics of PCBN Tool with Variable Chamfered Edge

The friction and wear characteristics of different cemented carbides YG6 with Ti6Al4V alloys in different loads and speeds are revealed by pin-on-disc rotation, and analyses the wear mechanism, when the system is designed with the tribology theory to guide the development of titanium machining tool material and rational use.

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Experimental Study on Carbide Tool Wear Characteristics Test for High Speed Finish Milling Aluminum Blades

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.33.454 ◽

2010 ◽

Vol 33 ◽

pp. 454-457

Author(s):

Xue Hui Wang ◽

Ming Jun Feng ◽

Zhi Qiang Gao ◽

Ming Jun Dai

Keyword(s):

Experimental Study ◽

Tool Wear ◽

High Speed ◽

Flank Wear ◽

Al Alloy ◽

High Speed Machining ◽

Carbide Tool ◽

Cutting Efficiency ◽

High Speed Milling ◽

Wear Characteristics

According to the condition of the high speed milling aluminum (al) blades, the wear characteristics of the carbide tool was observed, whose wear characteristics mainly were flank wear, micro-tipping, exfoliation and so on. With the increase of the cutting time, the tool wear became larger according to the increment of the spindle speed. At the condition of the same feed per tooth, applying high speed finish milling for al alloy blades whose cutting efficiency increased remarkably, surface roughness decreased, high speed machining was adopted in real applications to achieve high economical benefits.

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Experimental study on hard turning hardened GCr15 steel with PCBN tool

Journal of Materials Processing Technology ◽

10.1016/s0924-0136(02)00657-x ◽

2002 ◽

Vol 129 (1-3) ◽

pp. 217-221 ◽

Cited By ~ 29

Author(s):

X.L Liu ◽

D.H Wen ◽

Z.J Li ◽

L Xiao ◽

F.G Yan

Keyword(s):

Experimental Study ◽

Hard Turning ◽

Pcbn Tool ◽

Gcr15 Steel

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Experimental study on dry sliding wear characteristics of sintered/forged plain carbon steel (Fe-1%C) with the addition of Titanium

Materials Today Proceedings ◽

10.1016/j.matpr.2018.02.237 ◽

2018 ◽

Vol 5 (5) ◽

pp. 12551-12558

Author(s):

S. Senthur Prabu ◽

S. Prathiba ◽

M.A. Asokan ◽

D. Sai Mounish ◽

Aditya P. Vastrad ◽

...

Keyword(s):

Experimental Study ◽

Carbon Steel ◽

Sliding Wear ◽

Plain Carbon Steel ◽

Dry Sliding Wear ◽

Dry Sliding ◽

Wear Characteristics

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Wear Characteristics of Spheroidal Carbides Cast Irons in Uniaxial Rotary Glass Shredder

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.457.249 ◽

2010 ◽

Vol 457 ◽

pp. 249-254 ◽

Cited By ~ 5

Author(s):

Naoji Yoneta ◽

Kazumichi Shimizu ◽

Hiroya Hara ◽

Masahito Tanaka ◽

Yoshihiro Nawa

Keyword(s):

Experimental Study ◽

Wear Resistance ◽

Volume Fraction ◽

Experimental Results ◽

Dominant Factor ◽

Cast Irons ◽

Wear Characteristics ◽

Vanadium Carbides

Spheroidal carbides cast irons (SCIs) are used in severe conditions where often occur erosion and due to their excellent wear resistance characteristics. In this study, three kinds of SCIs with a variation in matrices are tested and evaluated as shredding blade of uniaxial rotary glass shredder in recycling factories where often occurs extreme abrasion with the crushed glass. They are SCI-VCrNi, SCI-VMn, and SCI-Vw with hard (2400Hv) spheroidal vanadium carbides (VC). As a result, SCI-Vw reveals excellent wear resistance, approximately 1/12 of wear removal in weight, compare to other two materials of SCI-VCrNi and SCI-VMn. Spheroidal carbides nodularity(70%) and volume fraction of VCs(approximately 20%) are similar in three kinds of SCIs. The hardness of matrix of SCI-Vw (800Hv) is greater than that of SCI-VCrNi (320Hv) and SCI-VMn (380Hv). Therefore the experimental results are interpreted that hardness of matrix are dominant factor for abrasion. Based on this experimental study, SCI-Vw is an effective material for abrasion occurred on the blade of the glass shredder.

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An Experimental Study of High-Speed Rotors Supported by Air-Lubricated Foil Bearings—Part 1: Rotation in Pressurized and Self-Acting Foil Bearings

Journal of Lubrication Technology ◽

10.1115/1.3554970 ◽

1969 ◽

Vol 91 (3) ◽

pp. 477-493 ◽

Cited By ~ 6

Author(s):

L. Licht

Keyword(s):

Experimental Study ◽

Temperature Rise ◽

High Speed ◽

Air Gap ◽

The Self ◽

Wear Characteristics ◽

Thrust Bearings ◽

Foil Bearings ◽

Foil Bearing ◽

Mode Of Operation

A high-speed rotor, supported by an air-lubricated foil bearing, is rotated in both the vertical and horizontal attitudes at speeds in excess of 60,000 rpm. The rotor is stable and free from “half-frequency” or “fractional-frequency” whirl instability encountered in conventional gas bearings. External pressurization is applied to separate the foil surfaces from the journal during the initial and final stages of rotation, with adequate self-acting support and foil separation established at relatively low transition speeds. In the pressurized mode of operation, the system is characterized by a series of ultra-harmonic resonances, of sharply defined frequencies, related by fractions to speeds of synchronous resonance. In the self-acting mode of operation, the response of the system to residual imbalance is influenced by both the foil bearing and by the pressurized thrust bearings. The magnitude of the air gap (clearance) is determined at various rotational speeds and compared with theoretically predicted results. The temperature rise of the foil with speed is measured at various locations in order to assess its contribution to clearance growth. The journal and foil surfaces are examined and it is found that the foil bearing is endowed with excellent wipe-wear characteristics.

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