Structural processability of parts processing
2023-11-16 22:07:55
The structural processability of the parts and components can be manufactured in a quality and quality manner under the premise of ensuring the technical requirements and under certain production conditions. Basic requirements for structural processability
From the technical point of the whole machine, analyze the structural processability of the parts. The machining of the machine parts is for the performance of the whole machine. The process structure of the parts should obey the craftsmanship of the whole machine, and the two cannot be separated.
Under the premise of meeting the performance of the work, the part modeling should be as simple as possible in advance of the performance of the work, while minimizing the number of parts processed and the processing area, should be composed of the simplest cylindrical surface, plane, conjugate surface, etc. The outline of the part; try to use standard parts, general parts and purchased parts; increase the number of the same shape and the same elements (such as diameter, fillet radius, fit, thread, key, gear modulus, etc.).
Part design should consider the possibility, convenience, accuracy and economy of processing. In the processing scheme that can meet the accuracy requirements, it should meet the economic requirements. In this way, under the premise of satisfying the performance of the parts and workpieces, the technical requirements of the parts (ie, the lowest machining accuracy and surface quality) should be minimized to improve the design process performance of the parts.
Reasonable selection of parts and materials It is necessary to consider whether the mechanical properties of the materials are suitable for the working conditions of the parts, so that the parts have a predetermined life and low cost. For example, carbon steel has good performance in forging and cutting, but the strength is not high enough, and the hardenability is low; cast iron and bronze cannot be forged and the weldability is poor. To actively use new materials, under the premise of meeting the performance of parts, there is better material manufacturability and economy, for example; rare earth magnesium ductile iron instead of forged steel, engineering plastics and powder metallurgical materials instead of non-ferrous materials.
Minimize the amount of machining of the part The shape and size of the part blank should be as close as possible to the shape and size of the part itself, and strive to achieve less or no chip processing, making full use of raw materials to reduce production costs. Advanced processes such as precision casting, precision forging, cold hole, cold extrusion, and powder metallurgy should be used to achieve the above requirements.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
From the technical point of the whole machine, analyze the structural processability of the parts. The machining of the machine parts is for the performance of the whole machine. The process structure of the parts should obey the craftsmanship of the whole machine, and the two cannot be separated.
Under the premise of meeting the performance of the work, the part modeling should be as simple as possible in advance of the performance of the work, while minimizing the number of parts processed and the processing area, should be composed of the simplest cylindrical surface, plane, conjugate surface, etc. The outline of the part; try to use standard parts, general parts and purchased parts; increase the number of the same shape and the same elements (such as diameter, fillet radius, fit, thread, key, gear modulus, etc.).
Part design should consider the possibility, convenience, accuracy and economy of processing. In the processing scheme that can meet the accuracy requirements, it should meet the economic requirements. In this way, under the premise of satisfying the performance of the parts and workpieces, the technical requirements of the parts (ie, the lowest machining accuracy and surface quality) should be minimized to improve the design process performance of the parts.
Reasonable selection of parts and materials It is necessary to consider whether the mechanical properties of the materials are suitable for the working conditions of the parts, so that the parts have a predetermined life and low cost. For example, carbon steel has good performance in forging and cutting, but the strength is not high enough, and the hardenability is low; cast iron and bronze cannot be forged and the weldability is poor. To actively use new materials, under the premise of meeting the performance of parts, there is better material manufacturability and economy, for example; rare earth magnesium ductile iron instead of forged steel, engineering plastics and powder metallurgical materials instead of non-ferrous materials.
Minimize the amount of machining of the part The shape and size of the part blank should be as close as possible to the shape and size of the part itself, and strive to achieve less or no chip processing, making full use of raw materials to reduce production costs. Advanced processes such as precision casting, precision forging, cold hole, cold extrusion, and powder metallurgy should be used to achieve the above requirements.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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