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    • 浅谈钣金加工的步骤以及会遇到的问题!
    • 本站编辑:杭州洛工钣金有限公司发布日期:2019-08-21 14:56 浏览次数:

    金属板材的使用不断增加,钣金零件的设计已成为产品开发过程的重要组成部分。精密钣金加工认为,机械工程师必须掌握钣金零件的设计技巧,以使钣金的设计符合产品要求,功能和外观要求使冲压模具制造简单且成本低。

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    钣金零件的特点是重量轻,强度高,导电性(可用于电磁屏蔽),成本低,并具有大规模的批量生产性能。它们广泛用于例如电子,通信,汽车,医疗设备等。在计算机机箱,移动电话和MP3中,钣金零件是不可或缺的一部分。

      精密钣金加工告诉大家,钣金是金属板(通常低于6mm)的综合冷加工工艺,包括剪切,冲压/切割/合成,折叠,焊接,铆接,拼接,成型(如车身)。它的显着特点是同一部件的厚度相同。通过钣金加工的产品称为钣金零件,不同行业所指的钣金件通常是不同的,并且通常用作组件的名称。

      钣金加工步骤:

      通常,钣金工厂中重要的三个步骤是切割,冲孔,切割和折叠。

      钣金零件是薄板硬件,即可以通过冲压,弯曲,拉伸等加工的零件。一般定义是加工过程中厚度恒定的零件。对应于铸件,锻件,机加工零件等。例如,汽车的外铁壳是金属板件,而一些由不锈钢制成的厨房用具也是金属板件。

      金属板有时用于金属板。这个词来自英文钣金。通常,一些金属板通过手工或模冲压塑性变形以形成所需的形状和尺寸,并且可以进一步焊接或少量机械。加工形成更复杂的零件,例如家中常用的烟囱,铁炉和汽车外壳都是钣金零件。

      具体来说,例如,使用金属板来制造烟囱,铁桶,油箱,空气管道,弯头,圆头,圆形空间,漏斗等。主要工艺是剪切,弯曲,弯曲,弯曲,焊接,铆接等等某些几何知识。

      精密钣金加工跟大家说一下,钣金加工冲压件加工常见问题:

      1.低部开裂:零件底部开裂的主要原因是材料塑化不良或模压环压得太紧。防止措施是更换塑料材料或松开压紧环。

      2.毛刺:在冲压或修整过程中,残留的材料没有完全留下,并且在钢板的截面下产生毛刺。根据横截面,当毛刺高度为0.2mm或更大时,铁粉会损坏模具并导致不均匀。

      3.滚筒印刷:清洁辊或送纸辊是由异物附着(以固定间距发生)引起的。在正常情况下,可以去除印在纸张上的异物。

      4.滑动打印:当滚轮滑动,突然停止或加速时发生。

      5.凸面和凹面:材料表面异常凸起或凹陷,这是由于在退绕线上掺入异物(铁屑,灰尘)引起的。

      6.线圈的粉碎可能是在边缘处起皱:退绕线的引导辊可能由模具上的引导辊之间的间隙起皱引起,这是由线圈进给的展开引起的。

      7.侧壁上的皱纹:部件侧壁上的皱折的主要原因是材料的厚度不足(允许略微小的厚度)或者当安装上模和下模时发生偏心,导致一侧有大的间隙,另一侧有小的间隙。预防措施是更换材料并重新调整模具。

      8.划痕:零件划伤的主要原因。模具上有尖锐的划痕或金属粉尘落入模具中。防止措施是修复模具上的划痕并去除金属粉尘。

    With the increasing use of metal plates, the design of sheet metal parts has become an important part of the product development process. According to the precision sheet metal processing, mechanical engineers must master the design skills of sheet metal parts in order to make the design of sheet metal meet the requirements of products, and the requirements of function and appearance make the manufacturing of stamping die simple and low cost.

    Sheet metal parts are characterized by light weight, high strength, electrical conductivity (can be used for electromagnetic shielding), low cost, and mass production performance. They are widely used in electronics, communications, automobiles, medical equipment and so on. Sheet metal parts are an integral part of computer cases, mobile phones and MP3 players.

    Precision sheet metal processing tells us that sheet metal is a comprehensive cold processing process of metal plate (usually less than 6mm), including shearing, stamping/cutting/synthesis, folding, welding, riveting, splicing, molding (such as body). Its remarkable characteristic is the same thickness of the same part. The products processed by sheet metal are called sheet metal parts. The sheet metal parts referred to in different industries are usually different and usually used as the name of components.

    Sheet metal processing steps:

    Usually, the three most important steps in a sheet metal shop are cutting, punching, cutting and folding.

    Sheet metal parts are sheet metal hardware, which can be processed by stamping, bending, stretching and so on. It is generally defined as a part with a constant thickness during machining. Corresponding to castings, forgings, machining parts, etc. For example, the outer iron shell of a car is metal plate, and some kitchen utensils made of stainless steel are also metal plate.

    Metal plates are sometimes used for metal plates. This word comes from English sheet metal. Typically, some metal plates are plastically deformed by hand or die stamping to form the desired shape and size, and can be further welded or mechanically infrequently applied. More complex parts, such as chimneys, furnaces and car casings, are made of sheet metal.

    To be specific, for example, use metal plates to make chimneys, iron drums, fuel tanks, air ducts, elbows, roundheads, circular Spaces, funnels, etc. The main processes are shearing, bending, bending, bending, welding, riveting and some other geometric knowledge.

    Precision sheet metal processing to tell you, sheet metal processing stamping parts processing common problems:

    1. Low part cracking: the main reason for the cracking of the bottom of the part is the poor plasticization of the material or the molding ring is too tight. The prevention measures are to replace the plastic material or loosen the compression ring.

    2. Burr: in the stamping or finishing process, the residual material is not completely left, and burr occurs under the section of the steel plate. Depending on the cross section, when the burr height is 0.2mm or greater, the iron powder will damage the mold and cause uneven.

    3. Roller printing: the cleaning roller or the paper feeding roller is caused by foreign body attachment (with fixed spacing). Under normal circumstances, foreign matter printed on paper can be removed.

    4. Slide printing: occurs when the roller slides and suddenly stops or accelerates.

    5. Convex and concave: the material surface is abnormally raised or concave, which is caused by mixing foreign matter (iron scrap, dust) in the unwinding wire.

    6. The crushing of the coil may be caused by wrinkling at the edges: the unwound guide roll may be caused by wrinkling of the gap between the guide rolls on the die, which is caused by the unfolding of the coil feed.

    7. Wrinkles on the side wall: the main reason for wrinkles on the side wall of components is insufficient thickness of materials (slightly smaller thickness is allowed) or eccentricity occurs when installing upper die and lower die, resulting in large clearance on one side and small clearance on the other side. The precaution is to change the material and readjust the mould.

    8. Scratches: the main cause of parts' scratches. Sharp scratches or metal dust fall into the mold. The prevention measures are to repair the scratches on the mold and remove metal dust.