Electronic copper parts
16 May
cnc turning technology, milling technology

The characteristics of turning copper parts

Copper alloy machining (turning, milling) has excellent performance and low resistivity. Good ductility, high thermal and electrical conductivity, so it is the most commonly used material in cables, connectors, and electrical and electronic components. It can also be used as a building material and can be composed of many kinds of alloys. The most important of these are: beryllium copper, phosphor bronze, bronze and brass. In addition, copper is also a durable metal that can be recycled many times without compromising its mechanical turning and milling performance.

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Copper electrode of EDM machine
16 May
milling technology, Prototype technology

CNC machining of copper electrode

During EDM machining, the copper electrode and the workpiece are respectively connected to the two poles of the pulse power supply. The pulse voltage applied to the copper electrode and the workpiece generates spark discharge. The instantaneous temperature of the discharge can be as high as 10,000 degrees Celsius, and the high temperature makes the surface of the workpiece partially vaporized or melted.

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Section A-A of the impeller blade
16 May
5-axis machining technology, milling technology

CNC machining impeller technology and clamping plan

According to the material, structural characteristics and technical requirements of the impeller, the CNC machining plan is analyzed and studied, including the machining process, technical difficulties and technical measures taken. It is recommended to add required process fixture bosses at one end of the impeller, and design and develop a special fixture mold to meet the requirements of impeller processing.

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5-axis swivel head type (left) and 5-axis tilt swivel head type (right)
14 May
5-axis machining technology, milling technology

The difference between 3-axis and 5-axis CNC machining centers

It is unethical to “talk about precision without the actual CNC machine tool”. If it is said that “the precision of a five-axis CNC machine tool will definitely be higher than that of a three-axis CNC machine tool”, then it is completely on paper. It is entirely possible that high-end three-axis machine tools have a higher machining accuracy index than ordinary five-axis machine tools.
The 3-axis machine tool contains three linear axes, X, Y, and Z,

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5-axis CNC machining complex free-form surfaces
14 May
5-axis machining technology, milling technology

Difficulties of 5-axis CNC machining

5-axis CNC machining method and machine tool. As early as the 1960s, the foreign aviation industry had begun to use it in order to process some large workpieces with continuous smooth and complex free-form surfaces, but it has not been widely used in more industries. Only in the past 10 years has there been rapid development. The main reason is that there are many difficulties in five-axis machining, such as:

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5-axis machining of complex profiles
14 May
5-axis machining technology, milling technology

5-axis machining of complex profiles

Complex contours appear in tool and mold manufacturing, and are mass-produced products. Before the emergence of CNC machine tools, forging dies and dies used in the automotive industry were mainly manufactured by hand. After the 1970s, CNC machine tools have been widely used in tool and mold manufacturing. The basic contours of complex profiles are usually processed by milling, and the surrounding CNC machine tools are initially set to three-axis linkage.

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