发布时间:2018-11-22 06:31:26

Precision machining should pay attention to:

 

1. machining accuracy

 

2. beautiful appearance

 

3.CNC full processing

 

4. Reasonable Allocation of Processing Hours

 

 

 

In mechanical processing, the following should be done:

 

1. Rough and finish processing should be separated, so as to better ensure the accuracy of mechanical processing.

 

 

 

When roughing, the cutting amount is large, the cutting force and clamping force of the workpiece are large, and the heat is large, so the machined surface will be processed remarkably.

 

 

 

Hardening phenomenon, there will also be a greater internal stress within the workpiece, if rough and finish machining continue, then after finishing parts

 

 

 

The accuracy will be affected by the redistribution of stress.

 

 

 

2. Choose appropriate mechanical processing equipment for processing.

 

 

 

Rough machining is mainly to cut off large parts of the machining allowance, do not need higher processing accuracy, so rough processing can choose in work.

 

 

 

Machining equipment with higher rate and lower precision.

 

Finishing is required to be carried out on mechanical processing equipment with high processing accuracy.

 

Choosing different machined equipment in rough and finish machining can not only give full play to the capacity of the equipment, but also prolong the machine tool better.

 

 

 

Service life, improve the efficiency of mechanical processing.

 

 

 

3. Make reasonable selection of machining technology.

 

 

 

Heat treatment is very important in the process planning of mechanical processing. Different heat treatment arrangements should be made for different machining processes.

 

 

 

In order to improve the cutting performance of metals before machining, heat treatment such as annealing, normalizing and tempering should be carried out; after rough machining, heat treatment should be eliminated.

 

 

 

internal stress