Tool shape and use

1. Tool tip type

(1) Roughing tool: It is mainly used to cut a large amount of excess parts so that the diameter of the workpiece is close to the required size. The surface luminosity is not important when roughing, so the tip of the tool can be ground to a sharp knife peak, but the knife peak usually has a slight roundness to avoid breakage.

(2) Fine turning knife: This blade can be polished with oil stone, so that the car has a very smooth surface luminosity. Generally speaking, the round nose of the precision turning tool is larger than the rough turning tool.

(3) Round nose knife: It can be applied to many different types of work. It is a common turning tool. When the top surface is flattened, it can be turned left and right or used to turn brass. This turning tool can also form a circular arc surface on the shoulder angle, or it can be used as a precision turning tool.

(4) Cutting the turning tool: Only the end cutting workpiece is used, and the turning tool can be used to cut the material and the groove of the vehicle.

(5) Screw turning tool (tooth knife): used for turning screw or nut, according to the form of thread, 60 degrees, or 55 degree V-shaped knife, 29 degree trapezoidal tooth knife, square tooth knife.

(6) Boring tool: used to turn holes drilled or cast. For the purpose of light size or straight hole surface.

(7) Side turning tool or side turning tool: used to turn the workpiece end face, the right side turning tool is usually used at the end of the precision axle, and the left side car is used to finish the left side of the shoulder.

2. The distinction of the shape of the blade

(1) Right hand turning tool: Turn right and left to turn the outer diameter of the workpiece. (2) Left-hand turning tool: Turn left to right, turning the outer diameter of the workpiece.

(3) Round nose knife: The blade has a circular arc shape and can be turned in the left and right direction, suitable for turning of rounded corners or curved surfaces.

(4) Right side turning tool: Turn the right end face.

(5) Left side turning tool: Turn the left end face.

(6) Cutting knife: used for cutting or grooving.

(7) Inner hole turning tool: used to turn the inner hole.

(8) External thread turning tool: used for turning external thread.

(9) Internal thread turning tool: used for turning internal thread.

If you want to do something good, you must first sharpen your tools. In order to make good cutting on the lathe, it is very important to properly prepare and use the tool. Different work requires different shapes of turning tools. Cutting different materials requires different angles of the knife edge. The position and speed of the turning tool and the work object should have a certain relative relationship. The turning tool itself should also have sufficient hardness and strength. Wear and heat resistant. Therefore, how to choose the turning tool material, the grinding of the tool angle is an important consideration.