NON-BLUNTING TOOL FOR CUTTING COAL AND ROCK.

被引：0
|
作者：
Kenny, P.
Johnson, S.N.
机构：
来源：
Colliery Guardian | 1977年 / 225卷 / 10期
关键词：
CUTTING TOOLS - Wear;
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学科分类号：
摘要：
Investigations of wear of coal and rock cutting tools have led to the development of a non-blunting tool. This tool has a tip consisting of two layers: a thin hard front layer on the rake face of the tip is backed by a thicker softer layer. Current work aimed at the preparation of robust versions of the non-blunting tool suitable for underground use is briefly reviewed. The expected benefits of the new tool in underground use are reductions in the stressing of machine components and increases in tool life.
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页码：762 / 763
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