3D printed plastic prototype
09 May
Prototype technology

Rapid Prototyping Service in China

What is the prototype and its function? How many ways are there to make a prototype?
Prototyping is an essential part of the product development process; however, it has often been a hindrance. Rapid prototyping is a process used to make plastic, metal, or ceramic items. Also known by its name in English as “additive technology Or subtractive technology “, since 3D printing manufacturing process is to add material layer by layer. And CNC machining (turning and milling) is a layer by layer of subtractive technology.

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Stainless steel milling tools
09 May
cnc turning technology, Stainless steel parts

Stainless steel milling and turning technology

Stainless steel materials have high toughness, high thermal strength and low thermal conductivity. During milling and turning, the plastic deformation is large, the work hardening is serious, the cutting heat is too much, and the heat dissipation is difficult. This results in high cutting temperature at the tool tip, severe chip adhesion to the cutting edge, and prone to buildup of chip edges, which not only aggravates the wear of the tool, but also affects the surface roughness of the machined surface. In addition, since the chips are not easy to curl and break, it will damage the processed surface and affect the quality of the workpiece. In order to improve the processing efficiency and the quality of the workpiece, how to correctly select the tool material, the geometric parameters of the turning tool and the milling amount are introduced as follows:

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CNC turning of precision stainless steel parts
09 May
cnc turning technology, Stainless steel parts

CNC turning of stainless steel parts

CNC machining of stainless steel parts, which is widely used in industry, poses a huge challenge to the tool industry. When developing new turning insert materials and chip-breaking geometries, we must consider their machinability. A group of stainless steel materials that provide a long service life in corrosive environments in the chemical, food, paper and pulp industries are being used more and more. These materials are usually chromium-based iron or carbon steel that provide good corrosion resistance. Other groups of stainless steel materials containing chromium and nickel with different specific gravities are used in the aerospace industry that requires high tensile strength and corrosion resistance. They range from low-nickel alloys with medium processing difficulty to high-temperature alloys with difficult processing.

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NC milling of precision stainless steel parts
09 May
milling technology, Stainless steel parts

cnc milling of stainless steel parts

The characteristics of milling stainless steel are: stainless steel has strong adhesion and fusion, and the chips are easy to adhere to the teeth of the milling cutter, which makes the milling conditions worse;
When up-milling, the cutter teeth slide on the hardened surface first, which increases the tendency of work hardening; When milling, the impact and vibration are large, which makes the cutter teeth of the milling cutter easy to chip and wear.

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Parameters of high-speed milling stainless steel parts
09 May
Stainless steel parts

milling cutter milling stainless steel cutting amount table

Set the cutting amount of high-speed steel milling cutter for milling stainless steel and the choice of milling cutter
First of all, the coolant will cool the chips too quickly and merge into the blade, resulting in reduced tool life;
Too high a feed rate will cause material accumulation, while a too low feed rate will cause friction between the tool and the workpiece, and will also cause overheating.
In fact, in order to avoid the edge of the knife, CNC machining stainless steel cutting heat is necessary. For stainless steel milling cutters, the appropriate milling speed should be selected to make the chips have a light brown color.

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