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Question

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。
钣金工厂一般来说基本设备包括剪板机（Shear Machine）、数控冲床（CNC Punching Machine）/激光、等离子、水射流切割机(Laser,Plasma, Waterjet Cutting Machine)/复合机（Combination Machine）、折弯机（Bending Machine）以及各种辅助设备如：开卷机、校平机、去毛刺机、点焊机等。
通常，钣金工厂最重要的三个步骤是剪、冲/切、折。

钣金有时也作扳金，这个词来源于英文platemetal，一般是将一些金属薄板通过手工或模具冲压使其产生塑性变形，形成所希望的形状和尺寸，并可进一步通过焊接或少量的机械加工形成更复杂的零件，比如家庭中常用的烟囱，铁皮炉，还有汽车外壳都是板金件.
金属板材加工就叫钣金加工。具体譬如利用板材制作烟囱、铁桶、油箱油壶、通风管道、弯头大小头、天园地方、漏斗形等，主要工序是剪切、折弯扣边、弯曲成型、焊接、铆接等，需要一定几何知识。
钣金件就是薄板五金件,也就是可以通过冲压,弯曲,拉伸等手段来加工的零件,一个大体的定义就是-
在加工过程中厚度不变的零件. 相对应的是铸造件,锻压件,机械加工零件等,比如说汽车的外面的铁壳就是钣金件,不锈钢做的一些橱具也是钣金件。

Answer 1

Sheet metal so far not yet have a complete definition, according to a foreign professional journals on a definition could be defined as: sheet metal against metal plates (usually in the 6 mm) in an integrated cold working process, including the scissors, Chong / Cut / Composite, folding, welding, riveting, stitching, forming (such as auto body). Its notable features is the same thickness of the same parts.
Ban Jingong plants generally basic equipment including cutting plate machine (Shear Machine), NC Punch (CNC Punching Machine) / laser, plasma, water jet cutting machine (Laser, Plasma, Waterjet Cutting Machine) / solutions (Combination Machine) , Bending machines (Bending Machine) and various auxiliary equipment such as: open-book machines, school-machine, deburring machine, such as spot welding.
In general, Ban Jingong plants of the three most important step is to shear, Chong / cutting, folding.

Sheet metal sometimes also tied for gold, the word comes from the English platemetal, is generally some sheet metal stamping die by hand or to produce plastic deformation, the formation of the desired shape and size, and further through a small welding or machining Formation of more complex components, such as commonly used in the family chimney, tin stoves, car plates are the pieces of shell.
Sheet metal processing called sheet metal processing. For example, the specific use of sheet metal production of the chimney, iron, fuel tank Youhu, ventilation pipe, the size of the first bend, park days, funnel-shaped, the main process is cut, bending deduction side, bending molding, welding, riveting, and so on, need to Certain geometric knowledge.
Sheet metal pieces of hardware that is thin, that is, by punching, bending, stretching, and other means to process the parts, a broad definition that is --
In the course of processing the same thickness of the parts. Correspond to the casting pieces, forging parts, machining parts, for instance, the car is outside the Tieke sheet metal pieces, stainless steel Chu Ju also do some sheet metal pieces.