Abstract




 
   

IJE TRANSACTIONS C: Aspects Vol. 31, No. 6 (June 2018) 943-948   

PDF URL: http://www.ije.ir/Vol31/No6/C/11-2828.pdf  
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  EVALUATION OF FLANK WEAR OF IRON-RICH BINDER CARBIDE CUTTING TOOL IN TURNING OF TITANIUM ALLOY
 
M. Chandrashekar and K. V. Sreenivasa Prasad
 
( Received: October 14, 2017 – Accepted in Revised Form: January 15, 2018 )
 
 

Abstract    Despite the fact that Titanium material has been considered as difficult to cut material, its usage has been increasing day by day in all engineering sectors; wherever criticality is encountered. Many studies are going on in view of increasing tool life at high cutting speed to improve productivity. In this study, attempt has been made to see the effect of iron as a partial substitution along with cobalt binder in cutting tool material for turning of titanium alloy. The iron-rich binder carbide tool samples were produced through powder metallurgy route using a powders with mean particle size of less than 0.5µm. Turning experiments were conducted at different speeds to evaluate the effects of iron-rich binder on tool flank wear. Results of turning experiments clearly showed that iron-rich binder tend to increase tool life in comparison to conventional WC-Co composite cutting tools.

 

Keywords    Titanium, Cutting Tools, Tungsten Carbide, Cobalt, Iron.

 

چکیده    علیرغم اینکه مواد تیتانیوم به عنوان موادی که به سختی برش می خورد، استفاده از آن روز به روز در تمام بخش های مهندسی در حال افزایش است، هرجا که مشگلی باشد این فلز قابل استفاده است. بسیاری از مطالعات گسترده ای در رابطه با افزایش طول عمر ابزار با سرعت برش بالا برای بهبود بهره وری از این فلز استفاده شده است. در این مطالعه تلاش شده است تا آهن را به عنوان یک جزئی جایگزین همراه با اتصال دهنده کبالت به عنوان ابزار برش برای تنظیم آلیاژ تیتانیوم استفاده گردید. نمونه های ابزار کاربید اتصال دهنده غنی با آهن با استفاده از روش متالورژی پودر با اندازه ذرات کمتر از 0.5μm تولید می گردد. آزمایش هایی جهت تنظیم سرعت های مختلف برای ارزیابی اثرات غلظت آهن غنی بر روی سایش ابزار برش انجام شده است. نتایج حاصل از آزمایش های تنظیم برش نشان می دهد که اتصال دهنده غنی از آهن باعث افزایش عمر ابزار برش در مقایسه با ابزار برش کامپوزیتی WC-Com معمولی می گردد.

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