NEW STEELS CUT TOOL AND MATERIAL COSTS.

被引：0

作者：

Anon

机构：

来源：

Machinery and Production Engineering | 1986年 / 144卷 / 3702期

关键词：

CUTTING TOOLS - Wear - METAL CUTTING - Efficiency;

D O I：

暂无

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学科分类号：

摘要：

Dean, Smith & Grace, a machine tool builder in Keighley, Yorkshire, has switched from a proprietary make of free-cutting alloy steel to a new 817M40T (heat-treated) steel known as IQ (improved quality) for manufacturing various machine transmission components. Initial tests carried out by DS&G on IQ steel were performed on 75 and 160 mm diameter bar. Cutting speeds for turning were raised from the 350 ft/min maximum found practical with standard (untreated) 817M40T to the 550 ft/min consistently used for the original proprietary steel. The original feed rates and depths of cut were restored; and the results were, says DS&G, satisfactory. Tool life was increased by as much as 300 percent, compared with that obtained when cutting standard 817M40T, and tolerances for size, geometry and surface finish could be held.

引用

页码：34 / 35

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