precision parts machining Rough and finish

In our precision parts machining industry, the most commonly used machining methods for precision parts machining are turning and milling.



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What is precision machininghNsYoYike manufacturer company
hNsYoYike manufacturer company
Usually, the machining method with a machining accuracy of 0.1-1μm and a machined surface roughness Ra of 0.02-0.1μm is called precision machining.hNsYoYike manufacturer company
hNsYoYike manufacturer company
Precision machining belongs to the finishing machining in mechanical machining. According to the temperature state of the workpiece to be machined, it is divided into cold machining and hot machining.hNsYoYike manufacturer company
Generally, it is processed at room temperature and does not cause chemical or phase changes of the workpiece, which is called cold working. Generally,
machining above or below normal temperature will cause chemical or phase changes in the workpiece, which is called thermal machining.hNsYoYike manufacturer company
hNsYoYike manufacturer company
Cold working can be divided into cutting
machining and pressure machining according to the difference in machining methods. Thermal machining commonly includes heat treatment, forging, casting and welding.hNsYoYike manufacturer company
hNsYoYike manufacturer company
Simply put, it is the milling or turning of common precision parts, which can be called cutting parts. Cutting can be divided into rough cutting and fine cutting in terms of technology. What is the difference between the two? Let me introduce to you:

Generally, after the rough cutting of the workpiece, the entire workpiece is relatively close to the appearance and size required by the workpiece itself, but there is still some machining allowance on the surface of the workpiece, which needs to be finely cut. After the fine cutting process, the surface of the workpiece will be more Smoother and more precise in size.hNsYoYike manufacturer company
 hNsYoYike manufacturer company

Under normal circumstances, the workpiece can achieve the required size and appearance after one rough cutting and one fine cutting, but it does not mean that all workpieces only need one cutting, because some parts of the workpiece may need to be cut multiple times , there may be some workpieces whose precision requirements are not too high or the cutting amount is very small, and it is also possible that only one fine cutting can meet the requirements of the workpiece.hNsYoYike manufacturer company
hNsYoYike manufacturer company
precision parts cnc machining   precision partshNsYoYike manufacturer company
hNsYoYike manufacturer company
 hNsYoYike manufacturer company

Precision parts machininghNsYoYike manufacturer company
 hNsYoYike manufacturer company

Rough cutting requires a larger cutting force than fine cutting because the workpiece needs a large cutting allowance. This requires a machine, and the tool and workpiece must be able to meet the requirements. Rough cutting is to quickly remove the allowance, and the surface effect after machining is not good. would be too rough.hNsYoYike manufacturer company
hNsYoYike manufacturer company
Fine cutting means that the surface and dimensional accuracy of the workpiece meet the requirements of the workpiece, so the tools needed for fine cutting also need to be very sharp, because the cutting amount is small, so the measurement precision is very high.hNsYoYike manufacturer company





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