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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厂家总结概述钣金切割加工工艺流程方法

2018-05-13 17:20:33 常州亿创钣金加工厂 阅读

钣金至今为止尚未有一个比较完整的定义,根据国外某专业期刊上的一则定义可以将其定义为:钣金是针对金属薄板(通常在6mm以下)一种综合冷加工工艺,包括剪、冲/切/复合、折、焊接、铆接、拼接、成型(如汽车车身)等。其显著的特征就是同一零件厚度一致。
Sheet metal has not yet been defined as a complete definition, which can be defined as a comprehensive cold processing technology for sheet metal (usually below 6mm), including shearing, punching / cutting / composite, folding, welding, riveting, splicing, forming (such as car body). . The notable feature is the same thickness of the same parts.

钣金切割加工是钣金制品成形的重要工序。它包括传统的切割下料、冲裁加工、弯压成形等方法及工艺参数,又包括各种冷冲压模具结构及工艺参数、各种设备工作原理及操作方法,还包括新冲压技术及新工艺。对于任何一个钣金件来说,它都有一定的加工过程,也就是所谓的工艺流程。随着钣金件结构的差异,工艺流程可能各不相同,但总的不超过以下几点。 

Sheet metal cutting is an important process for sheet metal forming. It includes traditional cutting blanking, blanking processing, bending and pressing forming and other methods and process parameters, including various cold stamping die structure and process parameters, various equipment working principles and operation methods, including new stamping technology and new technology.For any sheet metal part, it has a certain process, that is, the so-called technological process. With the difference of sheet metal structure, the process may be different, but the total does not exceed the following points.

1、设计并绘出其钣金件的零件图,又叫三视图。其作用是用图纸方式将其钣金件的结构表达出来。

2、绘制展开图。也就是将一结构复杂的零件展开成一个平板件。

3、下料:下料的方式有很多种,主要有以下几种方式:

1, design and draw part drawings of its sheet metal parts, also called three views. Its function is to express the structure of sheet metal parts by drawing.

2, draw the expansion map. That is to develop a complex part into a flat panel.

3. Blanking: there are many ways to cut stock, mainly in the following ways:

a、剪床下料。是利用剪床剪出展开图的外形长宽尺寸。若有冲孔、切角的,再转冲床结合模具冲孔、切角成形。

b、冲床下料。是利用冲床分一步或多步在板材上将零件展开后的平板件结构冲制成形。其优点是耗费工时短,效率高,可减少加工成本,在批量生产时经常用到。

c、NC数控下料:NC下料时首先要编写数控加工程序。就是利用编程软件,将绘制的展开图编写成NC数控加工机床可识别的程序。让其跟据这些程序一步一步的在一块铁板上,将其平板件的结构形状冲制出来。

d、激光下料:是利用激光切割方式,在一块铁板上将其平板件的结构形状切割出来。

A, cutting bed material. It is to use the scissors to cut out the length and width of the expansion plan. If there is piercing and corner cutting, the punching machine will be combined with die punching and corner cutting.

B, blanking of punching machine. It is the use of punching machine to step or piece the structure of sheet parts after stamping. Its advantages are short work time and high efficiency, which can reduce processing cost and is often used in mass production.

C and NC NC cutting: when NC is blanking, NC machining program is first written. It is to use programming software to compile the expanded drawing to be a recognizable program of NC CNC machine tool. Let them step by step with these programs on a piece of iron plate, and punch out the structural shape of the flat panel.

D and laser blanking are cut out by means of laser cutting on a piece of iron plate.

4、翻边攻丝:翻边又叫抽孔,就是在一个较小的基孔上抽成一个稍大的孔,再在抽孔上攻丝。这样做可增加其强度,避免滑牙。一般用于板厚比较薄的钣金加工。当板厚较大时,如2.0、2.5等以上的板厚,我们便可直接攻丝,无须翻边。
4, flanging tapping: flanging is also called pumping hole, which is to draw a slightly larger hole on a smaller base hole and then tapping on the hole. This can increase its strength and avoid slipping. It is generally used for sheet metal processing with thin plate thickness. When the plate thickness is large, such as 2 and 2.5 above the thickness of the plate, we can directly tapping without flanging.

5、冲床加工:一般冲床加工的有冲孔切角、冲孔落料、冲凸包、冲撕裂、抽孔等加工方式,以达到加工目的。其加工需要有相应的模具来完成操作。冲凸包的有凸包模,冲撕裂的有撕裂成形模等。
5, punch processing: General punch processing has punching, cutting, punching, blanking, punching, punching, tearing, holes and other processing methods, in order to achieve the purpose of processing. Its processing needs to have the corresponding mold to complete the operation. The convex hull has a convex mold and a tearing forming die.

6、压铆:压铆就本厂而言,经常用到的有压铆螺柱、压铆螺母、压铆螺钉等,其压铆方式一般通过冲床或液压压铆机来完成操作,将其铆接到钣金件上。
6, pressure riveting: pressure riveting in our factory, often used in the pressure riveting studs, pressure riveting nuts, pressure riveting screws and so on, the pressure riveting mode is usually completed through the punch or hydraulic pressure riveter to complete the operation, it is riveted to the sheet metal parts.

7、折弯。折弯就是将2D的平板件,折成3D的零件。其加工需要有折床及相应的折弯模具来完成操作。它也有一定的折弯顺序,其原则是对下一刀不产生干涉的先折,会产生干涉的后折。 
7, bending. Bending is the part of the 2D plate which is folded into 3D. The processing needs to have a folding bed and corresponding bending die to complete the operation. It also has a certain order of bending, the principle of which is to break the first step without interfering, resulting in a subsequent break of interference.

8、焊接。焊接就是将多个零件组焊在一起,达到加工的目的或是单个零件边缝焊接,以增加其强度。其加工方一般有以下几种:CO2气体保护焊、氩弧焊、点焊、机器人焊接等。这些焊接方式的选用是根据实际要求和材质而定。一般来说CO2气体保护焊用于铁板类焊接;氩弧焊用于铝板类焊接;机器人焊接主要是在料件较大和焊缝较长时使用。如机柜类焊接,可采用机器人焊接,可节省很多任务时,提高工作效率和焊接质量。
8. Welding. Welding is to weld multiple parts together to achieve the purpose of processing or to weld single parts by side seam to increase their strength. Its processing parties usually have the following kinds: CO2 gas shielded arc welding, argon arc welding, spot welding, robot welding and so on. The selection of these welding methods is based on actual requirements and materials. Generally speaking, CO2 gas shielded welding is used for iron plate welding; argon arc welding is used for aluminum plate welding; robot welding is mainly used when the material is larger and the weld is longer. If the cabinet is welded, robot welding can be used, which can save many tasks and improve work efficiency and welding quality.

9、表面处理。表面处理一般有磷化皮膜、电镀五彩锌、铬酸盐、烤漆、氧化等。磷化皮膜一般用于冷轧板和电解板类,其作用主要是在料件表上镀上一层保护膜,防止氧化;再来就是可增强其烤漆的附着力。电镀五彩锌一般用冷轧板类表面处理;铬酸盐、氧化一般用于铝板及铝型材类表面处理;其具体表面处理方式的选用,是根据客户的要求而定。
9. Surface treatment. Surface treatment usually includes phosphating film, galvanized multicolor zinc, chromate, baking paint, oxidation and so on. Phosphating coating is usually used for cold rolling plate and electrolytic plate, which is mainly coated with a protective film on the table to prevent oxidation, and then it can enhance the adhesion of the paint. The plating of cold-rolled zinc is usually treated with cold rolled plate. Chromate and oxidation are generally used for surface treatment of aluminum and aluminum. The selection of specific surface treatment methods is based on the requirements of customers.

10、组装。所谓组装就是将多个零件或组件按照一定的方式组立在一起,使之成为一个完整的料品。其中需注意的就是对料件的保护,不可划碰伤,组装是一个料品完成的最后一步。若料件因划碰伤而无法使用,需返工重做,会浪费很多的加工工时,增加料品的成本,因此要特别注意对料件的保护。

10. Assembly. The so-called assembly is to integrate multiple parts or components in a certain way and make them into a complete material. What we should pay attention to is to protect the material, not to scratch, and assembly is the last step of the finished product. If the material can not be used because of scratches, it is necessary to rework and rework. It will waste a lot of processing time and increase the cost of the material. Therefore, we should pay special attention to the protection of the material.


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