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How CNC Milling works?

CNC milling machine processing in fact the application of the “differential” principle, its working principle and process is described as follows.
1) According to the tool path required by the processing program, the NUMERICAL control device differentiates the path according to the corresponding coordinate axis of the machine tool with the minimum movement (pulse equivalent) as the unit, and calculates the number of pulses that need to move in each coordinate.

2) Through the “interpolation” software or “interpolation” arithmetic unit of the NUMERICAL control device, the required trajectory is fitted with the equivalent broken line as the unit of “minimum movement”, and the fitted broken line closest to the theoretical trajectory is found.

3) According to the trajectory of the fitted broken line, the NUMERICAL control device continuously allocates the corresponding coordinate axis to the feed pulse, and makes the coordinate axis of the machine tool move according to the assigned pulse through the servo drive.

How CNC Milling works?

Milling refers to the use of rotating multi edge tools to cut the workpiece, which is an efficient processing method. It is suitable for machining planes, grooves, various forming surfaces (such as splines, gears and threads) and special surfaces of molds.

Advantages

1. Parts processing has strong adaptability and flexibility, and can process parts with particularly complex contour shape or difficult to control size.

2. It can process parts that cannot be processed by ordinary machine tools or are difficult to process.

3. It can process parts that need to be processed in multiple processes after one-time clamping and positioning.

4. The machining accuracy is high, and the machining quality is stable and reliable. The pulse equivalent of the numerical control device is generally 0.001mm, and the high-precision numerical control system can reach 0.1 μ M

5. High degree of production automation

6. High production efficiency.

Drawbacks

1. More friction, blunt blade and short service life.

3. The device is not easy and is not suitable for milling thin workpieces.

2. The knife is easy to shake, the processing surface is rough, and the processing accuracy is poor.

4. It consumes a lot of energy.

Materials for CNC Milling

Aluminum	Steel	Copper / Brass / Titanium / Zinc	Plastics	Others
2A12	201	Copper	ABS	Bakelite
5052	303	Brass	Transparent ABS	Rubber
7075	304	Titanium(Ti)	Polycarbonate (PC)	FR4
6061	316	Zinc(Zn)	Acrylic (PMMA)	Others
others	430	Mild steel(Low Carbon Steel)	Delrin/Acetal (POM)
		Alloy steel	Polyethylene (PE)
		Tool steel	PTFE (Teflon)
			PEEK

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