Features and uses of various turning tools
1.75 degree cylindrical turning tool
The biggest feature of this turning tool is that the strength of the cutting edge is good. It is the Cutting Tool with the best cutting edge strength among the turning tools. It is mainly used for rough turning.
2.90 degree offset knife
This turning tool is characterized by machining steps. This knife is suitable for rough and fine turning.
3. Wide-blade fine turning tool
The biggest feature of this turning tool is that it has a long wiper edge. Due to the poor strength and rigidity of the turning tool head, if rough and fine turning is processed, it is easy to cause tool vibration, so it can only be processed by fine turning. The main purpose of this turning tool is to achieve the surface roughness requirements of the pattern.
4.75 degree face turning tool
Compared with the 75-degree cylindrical turning tool, the main cutting edge of this turning tool is in the direction of the end face of the turning tool, and the side is the secondary cutting edge. This tool is used for rough and fine turning of end face cutting.
5. Cut off knife
The parting knife is characterized by one main cutting edge and two minor cutting edges for cutting off. The main contradiction in use is the strength and life of the tool used. When sharpening the tool, pay attention to the symmetry of the angles between the two secondary cutting edges and the main cutting edge, otherwise the cutting force will be unbalanced on both sides, and the tool will be easily damaged during use.
6. Groove turning tool
Compared with the cutting knife, the main difference is the requirement for the width of the tool. The width of the tool must be ground according to the width of the drawing. This knife is used for machining grooves.
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7. Thread turning tool
The main feature of the thread turning tool is the angle of the turning tool when grinding. Generally speaking, it is better that the grinding angle of the thread turning tool is less than 1 degree than the angle required by the drawing. When the thread turning tool is processing parts, it is mainly necessary to install the tool correctly, otherwise, although the processed thread profile angle is correct, the thread of the inverted thread will cause the parts to be unqualified.
8.45 degree elbow knife
The main feature of this turning tool is the grinding of the rear corner. When machining the inner chamfer, the flank face does not collide with the wall of the inner hole. This knife is used for machining inside and outside chamfering.
9. No through hole turning tool
When machining holes, the biggest contradiction encountered by turning tools is that the shank extends too long, and the cross-section of the shank is small due to the limitation of the holes of the supplementary parts, which appears to be insufficient rigidity. When using a hole machining tool, the maximum cross-section of the tool bar allowed by the machining hole should be maximized to increase the rigidity of the tool bar. Otherwise, the machining of the hole will cause insufficient rigidity of the tool holder, resulting in taper and tool vibration. The feature of the non-through hole turning tool is to process the inner hole step and the non-through hole, and its main declination angle is less than 90 degrees, and the purpose is to process the end face of the inner hole.
10. Through hole turning tool
The characteristic of the through-hole turning tool is that the main declination angle is greater than 90 degrees, which shows that the tool has good strength and long life from the surface. Suitable for roughing and finishing of through holes.