Tungsten Carbide Taper Reamer Introduction
- Details
- Category: Tungsten Information
- Published on Wednesday, 22 October 2014 17:51
The tungsten carbide taper reamer has three basic types; 1:50 taper reamer, 1:10 taper reamer and 1:30 taper reamer.
The standards of tungsten carbide taper reamers: GB4248-84,GB1136-84 and GB1137-84.
The tungsten carbide taper reamer is typically used in the reaming of dowel holes of the same taper, such dowel holes with taper of 1:50, 1：30 and 1：10.
Geometric angles of tungsten carbide taper reamers:
I. Tool cutting edge angle
An angle of 15°is generally adopted in the machining of ductile materials like steel, while an angle between 3°~5°in fragile materials like cast iron. An angle of 45°is often adopted in roughing reaming and blind hole reaming, while an angle between 0.5°~1.5°in hand reamer reaming.
II. Anterior angle
There are usually small margin and thin chips during reaming. An anterior angle of 0° is often adopted for the convenience of manufacture, however, it can be 5°~10° when machining ductile materials in order to reduce chip deformation.
III. Clearance angle
The reamer is a type of finish machining tool, and in order to avoid great changes in radial dimension after regrinding, an angle between 5°~10° can be adopted.
IV. Tool cutting edge inclination
The tool cutting edge inclination of reamer is normally 0°. It can contribute to a stable cutting process and improve hole quality.
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