Tungsten Carbide Reamer ⅩⅣ

In part 13 we know that the two major materials for reamers are high-speed steel and tungsten carbide, and tungsten carbide reamers are less affected by heat in machining process, but with so brittle and blunt cutting edges that they are not for light machinery. And here we list the different applications of the reamers made of the two categories of materials.

Common       tool materials	Applications
High-speed steels	Most commonly used. Inexpensive.
	Hardness up to Rc 67. Sharp cutting edges, meaning less cutting force.
	The high cobalt versions are very resistant to heat and thus excellent for reaming abrasive and/or work hardening materials such as titanium and stainless steel.
Tungsten carbide	More expensive than high-speed steels.
	Hardness up to 92 Rc. Will outlast high-speed steels (usually by about 10:1) when reaming steel.
	Required to ream hardened materials.

 (To be continued. This article is divided into several parts and this is part 14, for part 13 please refer to http://news.chinatungsten.com/en/tungsten-information/79733-ti-10198)

 

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