跳至主要内容

MEASURES TO IMPROVE THE MACHINED PARTS SURFACE QUALITY

Measures to improve the surface quality of machined parts

Improve operator skills

The operator must master the technology of tool fixing and tool setting. Tool fixing and tool setting is an important and very difficult basic work in CNC machining. The good and bad of tool loading and tool setting will directly affect the programming of machining program and the dimensional accuracy of machining parts. Only mastering the technology of tool setting and tool setting can guarantee the machining quality. The tool setting is generally divided into manual tool setting and automatic tool setting. At present, the vast majority of CNC machine tools use manual tool setting, and the commonly used tool setting method is trial cutting. It can get more accurate and reliable results.

KYLT Stainless steel cnc turning service
KYLT Stainless steel cnc turning service

The simulation system of CNC lathe is used to check the program: after the program is input in the machine panel, the program must be simulated first. So that the processing program can simulate the processing and display the processing track on the CRT, to see whether the movement of the machine tool (cutter) and the shape of the simulated workpiece are correct. Through program simulation, we can check whether the program is correct and reasonable, avoid accidents caused by program errors, so as to reduce the loss of equipment and tools, ensure personal safety, and ensure the processing quality.

Measures to reduce the machined parts surface roughness value

Reasonable choice of cutting parameters: properly reduce the feed basin, select a reasonable cutting speed and depth, can reduce the machining parts surface roughness value.
The surface roughness can be reduced by selecting appropriate tool materials and geometric parameters: using advanced tool materials, increasing the inclination of the cutting edge, reducing the main and secondary deflection angles of the tool, and increasing the radius of the tip arc.

Aluminum CNC machined part services
Aluminum CNC machined part services

To improve the machinability of materials, the surface with very fine surface roughness can be obtained by using heat treatment normalizing or annealing process to refine grains.
KYLT Precision CNC machining services (milling & turning service), Fast prototyping, Fixture/Jig/Tooling making, Aluminum die casting & plastic injection parts. Email:cnkylt@aliyun.com +008615195010186
KYLT CNC Machining Services:
KYLT CNC Precision Machined Parts:
More information about Machining Technology:
标签：

评论

发表评论

此博客中的热门博文

CNC MACHINE BE CLASSIFIED BY SERVO CONTROL MODE

Servo control mode to classify CNC machine tool. (1) open loop control CNC machine tool The feed servo drive of this kind of machine tool is open-loop, that is, there is no detection feedback device. Generally, its driving motor is a stepping motor. The main feature of stepping motor is that every time the control circuit changes the command pulse signal, the motor will rotate a step angle, and the motor itself has self-locking ability. The drive circuit is controlled by the pulse distributor, which controls the coordinate displacement by changing the number of pulses, the displacement speed by changing the frequency of pulses, and the direction of displacement by changing the distribution sequence of pulses. Therefore, this control mode is characterized by convenient control, simple structure and low price. The command signal flow from the CNC system is unidirectional, so there is no stability problem of the control system, but because the error of the mechanical transmission...
发表评论
阅读全文

SELECTION PRINCIPLE OF CUTTING PARAMETERS FOR SCREW THREAD TURNING

Because the pitch (or lead) of the thread is specified by the drawing, the key to choose the cutting parameters when  turning  the screw thread is to determine the spindle speed n and the cutting depth AP. 1) SELECTION OF SPINDLE SPEED TO DO SCREW THREAD TURNING According to the mechanism that the spindle turns 1 and the cutter feeds 1 lead when turning the thread, the feed speed of the CNC lathe is determined by the selected spindle speed. The thread lead (which is the pitch when the thread is single head thread) instructed in the thread processing program section is equivalent to the feed speed VF VF = n f (1) expressed by the feed rate f (mm / R) From Formula 1, it can be seen that the feed speed VF is proportional to the feed amount F. if the spindle speed of the machine tool is selected too high, the converted feed speed will greatly exceed the rated feed speed of the machine tool. Therefore, when selecting the rotation speed of the main shaft for turning the threa...
发表评论
阅读全文

SCREW THREAD MACHINING METHOD

In  Metal parts machining  works, screw thread (tapping) be required. The screw thread is mainly divided into: connecting thread and driving thread For  connecting thread , the main  machining  methods are: tapping, threading, turning, rolling, etc. For  transmission thread , the main  machining methods  are: rough and fine turning – grinding；whirlwind  milling  – rough and fine  turning , etc. CNC turned screw thread part The following describes the various screw machining methods: THREAD CUTTING Generally, it refers to the method of machining thread on workpiece with forming tool or grinding tool, mainly including  turning , milling, tapping, threading, grinding and whirlwind cutting, etc. THREAD MILLING On the thread milling machine, the disc milling cutter or comb milling cutter is used for milling. Disc  milling  cutter is mainly used for milling trapezoid external thread of screw rod, worm and o...
发表评论
阅读全文