jump to navigation

PERFORMANCE OF COATED CERAMIC CUTTING TOOL WHEN MACHINING HARDENED STEEL Mei 16, 2008

Posted by lenijuwita in Material Science.
Tags: ,
trackback

Abstract

Parts that are machined in their hardened state during manufacturing are increasing in number and applications. This hard machining method has been made possible by the introduction of advanced cutting tools materials with high hot hardness. The development of ceramic cutting tools accelerates the application of the hard machining method. Furthermore, coating techniques have fortified cutting tools to be able to perform in extreme conditions. AISI D2 cold work tool steel hardened to 60 HRC has been machined by using a PVD TiNcoated aluminum oxide and titanium carbonitride (Al2O3/TiCN) ceramic cutting tool. Different cutting speeds were used to investigate the performance of the coated ceramic cutting tool. Results show that the tool life was decreased with increasing cutting speed. The possible wear mechanisms were examined by utilizing field emission scanning electron microscope (FESEM) to obtain the visual image and energy dispersive X-ray spectrometer (EDS) to identify the elements. Results indicate that the tool life decreased considerably with the increase in cutting speed, with abrasion as the major wear mechanism and chipping of the cutting edge as the failure mode.
Keyword: hard turning, coated ceramic, tool life, wear mechanism, surface finish

More on pdf file

Komentar»

No comments yet — be the first.

Tinggalkan Balasan

Isikan data di bawah atau klik salah satu ikon untuk log in:

Logo WordPress.com

You are commenting using your WordPress.com account. Logout / Ubah )

Gambar Twitter

You are commenting using your Twitter account. Logout / Ubah )

Foto Facebook

You are commenting using your Facebook account. Logout / Ubah )

Foto Google+

You are commenting using your Google+ account. Logout / Ubah )

Connecting to %s

%d blogger menyukai ini: