The following introduces the characteristics of precision parts processing by non-standard parts processing manufacturers.
Release time:
2022-02-28
The following introduces the characteristics of precision parts processing by non-standard parts processing manufacturers. Non-standard parts processing manufacturers: What are the causes of deformation in precision mechanical parts processing? In the processing of mechanical parts, in addition to ensuring size accuracy and surface roughness, attention should also be paid to the deformation of parts caused by external forces. Regarding the processing deformation of mechanical precision parts, we must first understand the causes of this problem.
Non-standard parts processingThe manufacturer will introduce the characteristics of precision parts processing.
Non-standard parts processing manufacturer: What are the reasons for the deformation of precision mechanical parts processing?
In the processing of mechanical parts, in addition to ensuring dimensional accuracy and surface roughness, attention should also be paid to the deformation of parts caused by external forces. To understand the deformation in the processing of mechanical precision parts, we must first understand the reasons for this problem:
1. Deformation of parts caused by external forces; the reasons can be divided into two categories; first, during the processing of precision mechanical parts, the stress direction of the parts will change under the influence of cutting forces; this change is due to the lack of rigidity of the parts themselves. The parts will deform under the action of force, and the deformation is usually very obvious. When forced, the parts will significantly protrude in the direction of the force, causing serious deformation, making it impossible to proceed to the next step, and the parts will not meet the expected requirements, becoming unqualified products.
2. Heating deformation generated during the cutting process; during the processing of precision parts, there will be intense surface contact between the blade and the blank, which will inevitably generate high temperatures at the contact points. If appropriate cooling methods are not used, due to differences in tool heat dissipation, poor material heat resistance, and high contact point temperatures, wear will increase, leading to deformation during the processing of precision mechanical parts, making it impossible for the product to achieve the required shape.
3. Deformation caused by clamping during non-standard parts processing; parts need to be clamped before processing, which is also one of the main reasons for part deformation. When clamping parts, it is important to choose appropriate clamping points and clamping forces. The number of clamping points and support points for the parts should be the same. If there are multiple clamping points on a part, attention should be paid to the clamping sequence and clamping strength. If not handled properly, it can also be very difficult and prone to deformation.
Non-standard parts processingManufacturer: What are the characteristics of precision parts processing?
Precision parts processing has many advantages. Previously, we also shared the specific advantages of precision parts processing. One obvious point is that it can achieve high precision that ordinary processing cannot reach. High precision also relies on precise processing equipment and accurate constraint systems. Precision masks serve as intermediaries to achieve fine control over the removal or addition of material on the outer surface. What are the characteristics of precision parts processing?
1. Cutting of precision parts
Mainly includes precision turning, mirror grinding, and grinding. Micro-turning is performed on a precision lathe using fine-grained single crystal diamond cutting tools, with a cutting thickness of only about 1 micron, commonly used for processing high-precision, smooth parts such as spherical, aspherical, and flat mirrors made of non-ferrous metal materials.
2. Precision parts processing
The processing accuracy of precision parts is at the nanometer level. The processing methods for ultra-precision parts cannot be adapted to it and require special precision parts processing methods, namely applying chemical energy, electrochemical energy, thermal energy, or electrical energy to exceed the binding energy of atoms, thereby removing the adhesion, binding, or lattice deformation of certain atoms on the surface of the workpiece, achieving the goal of ultra-precision processing. These processes include mechanochemical polishing, ion sputtering and ion implantation, electron beam exposure, laser beam treatment, metal evaporation, and molecular beam epitaxy.