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What are the technical requirements for non-standard machining?
11-12
Non-standard machining is one of the commonly used parts in machinery, and non-standard machining is an important part. It supports transmission components and transmits torque. For us, the technical requirements and processing of shaft parts are part of large-scale machining. What is its specific content? So take a look below.
The technical requirements for non-standard machining generally include the following aspects:
1. Accuracy of diameter and geometry
On the shaft, non-standard machining support journals and matching journals are important. The diameter accuracy is IT5-IT9, while the shape accuracy must be controlled within the diameter tolerance, which requires higher than diameter accuracy. Mutual position accuracy: If it is a general-precision shaft, its radial circular runout, if it cooperates with the journal to support the journal, is generally 0.01-0.03 mm, and the high-precision shaft is 0.001-0.005 mm. If there are special requirements, please note bright.
Non-standard machining
2. Surface finish
Due to factors such as machine accuracy and operating speed, the requirements for surface roughness of non-standard machining are also different. The surface roughness of the support journal is 0.16-0.63 microns, and the surface roughness of the mating journal is 0.63-2.5 microns.
3.Material, blank and heat treatment of spindle
In non-standard mechanical processing, the commonly used material is 45 steel. Through normalizing, annealing, tempering and quenching, certain strength, hardness, wear resistance and toughness can be obtained.
For shaft parts with higher rotational speed, alloy structural steel can be used, because the wear resistance and fatigue resistance will be improved after heat treatment.
Spindle blanks generally use forgings and round steel, which can reduce the amount of cutting and improve the mechanical properties of the material.
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2025-04-08
Today, with the booming development of the construction machinery industry, precision machining of parts is not only the core guarantee of equipment performance, but also the key driving force for industrial upgrading. As an industry-leading engineering machinery parts processing service provider, Suzhou Yilian Industrial Technology Co., Ltd. has been deeply involved in the industry for 20 years, and has always taken technology as the foundation and quality as life to provide global customers with high precision and high reliability parts solutions.
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Precautions for safety in CNC machining
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Parts refer to individual inseparable parts in machinery. They are the basic components of the machine and the basic unit in the machinery manufacturing process. Its manufacturing process generally does not require assembly processes. Such as bushings, bearing bushes, nuts, crankshafts, blades, gears, cams, connecting rod bodies, connecting rod heads, etc. To put it simply, non-standard parts are parts that do not have certain standards. Crafting custom parts is easier than standard parts. And it won't be that complicated. Everyone knows that improper operation in CNC machining will cause certain harm to the operator. Therefore, when we use CNC machining to process non-standard parts, we must strictly abide by the operating rules to ensure safety. Specific attention should be paid to the safety of CNC machining. The matters are as follows: