How to determine the speed, cutting speed, and cutting width of the tool

Ball knives are mostly used for semi-finishing and finishing. Round knives inlaid with cemented carbide tools are mostly used for roughing. Question: How to choose a machining tool reasonably? What are the major elements of cutting consumption? There are several kinds of materials for the tool? How to determine the speed, cutting speed, and cutting width of the tool?

1. In plane milling, you should choose non-reground hard alloy end mills or end mills. In general milling, it is best to use the second pass for processing. The first pass is best to use the end mill for rough milling, and continue to pass along the surface of the workpiece. The width of each pass is recommended to be 60%-75% of the tool diameter.

2. End mills and end mills with carbide inserts are mainly used for processing bosses, grooves and box mouth surfaces.

3. Ball knives and round knives (also known as round nose knives) are often used to process curved surfaces and variable bevel contours. The ball knife is mostly used for semi-finishing and finishing. Round knives inlaid with carbide tools are mostly used for roughing. (Guide: Why is the bearing damaged prematurely? This can increase the life of the bearing)

Q: What is the function of the processing procedure sheet? What should be included in the processing procedure sheet?

Answer: (1) The processing procedure sheet is one of the contents of the CNC machining process design. It is also a procedure that needs to be followed and executed by the operator. It is a specific description of the processing procedure. The purpose is to allow the operator to clarify the content of the procedure and the clamping And the positioning method, the tools selected by each processing program should be paid attention to.

(2) In the processing program list, it should include: drawing and programming file name, workpiece name, clamping sketch, program name, tool used in each program, maximum cutting depth, processing nature (such as rough machining) Still finishing), theoretical processing time, etc.

Q: What preparations should be made before CNC programming?

Answer: After determining the processing technology, you must understand before programming:

1. Workpiece clamping method;

2. The size of the workpiece blank-in order to determine the scope of processing or whether multiple clamping is required;

3. The material of the workpiece-in order to choose which tool to use for processing;

4. What are the stocked knives? Avoid modifying the program during processing because there is no such tool. If you must use this tool, you can prepare it in advance.