常州亿创钣金加工厂专业从事精密钣金加工、激光切割加工为主的钣金加工型厂家

常州亿创钣金加工厂

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厂家对钣金加工材料选择的五种注意事项

2018-06-14 08:49:22 常州亿创钣金加工厂 阅读

对于钣金加工材料的选用,应根据产品所需要的机械性能及成本等因素决定。合理选用和正确使用材料,是一项十分重要的工作。选钣金加工材料时一般应该考虑一下6点:
The selection of sheet metal processing materials should be determined according to the mechanical properties and cost of products. Reasonable selection and proper use of materials is a very important job. When selecting sheet metal processing materials, 6 points should be considered:

(1)选用的材料其表面应该是光滑、平整、无分层、无损伤、无锈斑及无氧化皮等弊病。

(2)根据工件的工作条件不同和工件的用途不同,选择所需要的材料。另外,对材料的质量、美观要求,在选料时也应该予以考虑。

(3)选料要根据工件的加工和受力情况选择,要处理好强度和韧性之间的关系,只有这样才能保证工件既具有足够的韧性,又有可靠的强度,减少断裂破坏,提高成品率和使用寿命。

(4)选用冷作硬化趋向小的材料,在工件加工变形过程中,由于冷作硬化的影响,材料硬度增大,塑性变形能力减弱,易发生脆性断裂。冷作硬化趋向小的材料,在加工中,基本上能保持原来的塑性,不一发生脆性断裂现象。

(5)在满足使用要求的前提下,应该优先选用价格低廉的黑色金属。同时,还要考虑国家生产和供应情况,因地制宜的选取。选用材料的品种应尽量的少而集中,这样,便于采购和管理。版料的规格,要便于排料,提高材料的利用率。

(1) the surface of the material should be smooth, smooth, no lamination, no damage, no rust spots and no oxygen coating.

(2) according to the different working conditions of the workpiece and the different uses of the workpiece, select the materials needed. In addition, the quality and aesthetic requirements of materials should be taken into consideration when selecting materials.

(3) the selection of material should be based on the processing and force condition of the workpiece, and the relationship between strength and toughness should be dealt with. Only in this way can the workpiece have enough toughness and reliable strength to reduce fracture damage and improve the rate of finished product and service life.

(4) in the process of deformation and hardening of the workpiece, the hardness of the material increases, the plastic deformation ability is weakened and brittle fracture occurs easily during the process of deformation and deformation of the workpiece. In the process of cold work hardening, the materials which tend to be small tend to retain their original plasticity and brittle fracture.

(5) under the premise of meeting the requirements of application, we should give priority to the selection of cheap ferrous metals. At the same time, we should also consider the state production and supply situation and choose according to local conditions. The varieties of materials should be concentrated as little as possible, so that they can be easily purchased and managed. The specifications of the plate should be convenient for discharging and improve the utilization rate of materials.



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