51吃瓜

??? ??? ?? ????? ??????? ??? ???? ?? ???:

????????? ??????? ???? ??? ?????? ?????? ??????? ?? ???? ?? ????? ??? ??? ???? ????? ????? ?? ???? ??? ??? ??? ???? ?????? ?? ????? ????? ?? ????

2. ???? ???? ?????? ??? ???? ?? ??? ??? ?? ???? ?????? ??? ???? ?? ???? ??? ??? ?????? ?? ???? ???? ??? ?? ???? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ???

3. Sheet metal parts are mostly made of metal sheets and pipe fittings. Because of their light weight, high strength and stiffness, shape can be arbitrarily complex, low material consumption, no need for mechanical processing, and smooth surface, they are widely used in daily life and industrial production, such as barrels, basins, ventilation ducts, material conveying pipelines, automotive cover processing etc. In addition, they can also be applied to external repair work of automobiles.

4. Metal sheet processing usually refers to methods such as shearing, bending, rolling, and flipping forming. ????? ??? ?? ??? ???? ??? ????? ??фор??? ?????? ?? ???? ???? ?? ??? ???? ?? ??????? ???? ?????? ??? ??????? ??? ??? ?? ????? ?? ?????? ????? ?? ?????? ???? ?????? ?? ??? ??? ?????? ?? ??? ??.

??? ??? ????:

1. ?????????? ????: SECC (N) (?????? ????? ???? ????), SECC (P), DX1, DX2, SECD (????? ????). Material hardness: HRB50+- 5, tensile plate: HRB32~37

2. ????? ??? ????: SPCC, SPCD (??????? ???? ????), 08F, 20, 25, Q235-A, CRS. Material hardness: HRB50+-5, tensile plate: HRB32~37.

3. ?????? ???? AL, AL (1035), AL (6063), AL (5052), etc.

4. Stainless steel plates: SUS, SUS301 (302303304), 2Cr13, 1Cr18Ni9Ti ??? ????.

5. ????? ??????? ??????? ??? ???? ???: ?????? ??? ???? (T1, T2), ??? ??? ????? ???? ???? ????? ????????? ???? ???? ????? ????????? ??????? ??? ????.

Sheet Metal Processing technology:

??? ??? ???? ????????? ?????? ??? ????? ?? ???? ??: ???????? ???? ?????? ???? ???? ??? ?? ??????? ????? ????? ??? ????? ??????? ????. ?? ???? ???? ?????? ?? ????? ???? ?? ???? ???????? ??????? ??????? ?????? ??? ??????.

(1) ??? ???? ????

1. ???? ?? ?? ??? ???? ??? ??? ???? ?? ????? ???? ???? ?? ??? ?? ?? ??? ????? ?? ????? ??? ?? ??????? ?? ??? ???? ?? ??? ??? ??? ????? ?? ????? ??? ??? ?????? ?? ??? ???? ???? ??.

2. ????? ?????? ?? ??? ?? ??????? ?? ????? ?? ?????? ??? ???: ??????? ???? ??? ??? ??????? ???? ??? ?? ?????.

3. ???? ?? ??? ??? ??? ?? ????? ??? ?? ???? ?? ???? ?? ?? ?? ??? ?? ??? ???? ??? ?? ??? ??? ?? ??? ??? ???? ???? ??? ??. ???????? ??????? ??? ????? ?? ???? ??? ??? ??? ??? ?? ??? ????? ??? ?? ??????? ?? ???? ??? ??? ?? ??????? ???? ?? ??? ??? ????? ??? ?? ??? ??? ???? ?? ???? ???? ??? ???? ??? ???? ???? ?? ??? ??????? ??????? ???? ???

??? ??? ???? ?????

1. ?????: ????? ???? ????? ?? ????? ?? ???? ???? ??? ??? ?????? ?? ?????? ???? ????? ?? ??? ??? ?? ????? ???? ?? ?? ????? ????? ?? ??? ??? ?????? ?? ????? ???? ??????? ??? ??? ??? ???? ???.

1. 1 ????? - ???? ???? ??? ????? ?? ??? ??? ????? ????? ??????? ????. ???? 0.2? ?? ???? ???? ???? ??? ?? ?? ????? ?????? ????? ?? ??? ???? ????? ?? ??? ??????? ??? ???? ??.

1.2 Punching and cutting - use a CNC punching machine (NC) or a regular punching machine for cutting. ????? ????? ?? ????? 0.1? ?? ????? ???? ???? ?? ???? ???? ???? ???? ?? ??? ??????? ??? ??? ??? ??? ????? ?? ?????? ??? ??????? ????? ?? ??? ??? ?????? ?? ???? ??? ??? ???? ??? ??? ?? ??? ????? ?????? ?? ??? ????? ??.

1 ?? ??? ???? ?? ??? ?? ?? ??????? ????? ???: ??????? ??? AMADA?

1.2 ??????? ??????? ??????? ?? ???? ??? ?????? ????? ?? ???? ???? ?? ????? ?? ?? ????? ?? ??? ?? ???? ????? ????? ?????? ????? ?? ???? ??????? ?????? ????? ?? ???? ??????? ????? ????? ?? ?????? ??? ?? ???? ?? ???? ??.

1.3 ???? ??? - ???? ??? ????? ?? ??????? ?? ??? ??? ?? ????? ??? ???? ?? ??? ???? ?? ????? ?? ??? ???? ???? ?? ???? ?? ?? ?????? ???? ???? ?? ??? ??? ?????? ??? ?? ???? ????? ?? ?????? ???? ?? ?????? ??? ???? ?????? ?? ???? ?????? ??? ???? ??.

2. ???:

Sheet metal forming is a major processing method in sheet metal processing. ????? ?? ?????? ??? ????? ?? ???? ??: Manual forming ??? machine forming. ???? ?????? ???? ?? ????? ????? ?? ??? ?? ??????? ??? ???? ?? ?? ??? ???? ???? ?? ??? ??? ?? ??? ??? ???? ??? However, when processing some materials with complex shapes or near deformation, manual forming is still indispensable. ???? ???? ???? ?? ??? ?? ???? ????? ??? ?? ?? ?????? ???? ????? ????? ??????? ??? ???? ???: ????? ????? ????? ????? ????? ??? ????.

?? ???? ???? ????? ????? ?? ???? ??? ??? ???? ???: ????? ???? ????? ???.

2.1 Bending Forming - Fix the upper and lower molds separately on the upper and lower workbenches of the folding bed, use servo motors to transmit and drive the relative motion of the workbenches, and combine the shapes of the upper and lower molds to achieve bending metal. ?????? ?? ?????? 0.1? ?? ???? ???? ??.

2 ???? ?? ???? 0.1? ?? ????? ???? ???? ??. Punching machines can be divided into ordinary punching machines and high-speed punching machines.

3. ??? ????? ?? ?????

??? ????? ?? ????? ???? ???????? ???? ??? ????? ?? ????? ?? ????? ?? ???? ???? ???? ????? ?????? ????? ?????? ???????? ???? ????? ??? ?? ???? ??? ??? ??? ?? ????? ??? ???? ??.

??? ?? ????? ?? ?????? ?? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ?? Sheet metal connection is the process of connecting different parts in a certain way to obtain the desired product. Sheet metal connections can be divided into welding, riveting, threaded connections etc.

??? ?????

1. ????? ?? ???

Corner bite and buckle style

2. ??? ?? ???????

????? ????? ?????? ?? ????? ???? ????? ??? ??????? ??? ???? ???:

(1) ??? ??? ??? ?????? ?? ????? ?? ????? ???? ?? ??? ??????? ??? ???? ??? ?????? ?? ????? ?? ???? ??? ?? ????? ?? ????

(2) ??? ???? ????? ?? ???? ????? ??? ????? ????? ?? ??? ??? ????????? ?? ???? ????? ?? ??? ??????? ??? ???? ???

(3) ???? ?? ???? ???? ???? ?? ???? ??? ??? ?? ??? ????? ?? ??? ???? ???? ?? ???? ??? ???? ???? ?? ???? ?? ???? ???? ?? ???? ??? ????? ?? ????? ?? ????? ?? ??? ??????? ??? ???? ????

??? ?????? ??? ??????

??? ?? ????? ???? ?? ????? ?? ????? ??? ???? ???? 8-1 ??? ?????? ???? ??.

??? ?? ?????? ???? ????? ???? ????? ??? ??????? ??? ???? ??.

2. ??? ??? ??? ?? ???? ??? ???? ??? ??? ??? ??? ?? ???? ??? ???? ?? ???? ?? ???? ??? ?? ??? ?? ????? ??? ??? ????? ???? ?? ???? ?? ???? ?? ??? ??? ?? ??? ?? ????? ??? ?? ??? ?? ????? ??? ??? ??? ?? ??? ?? ????? ??.

3. joint corner bite ?? ??? ??? ???? ?? ??? ??? ??? ??? ??? ??? ????? ??? ????? ??? ????? ??? ????? ??? ????? ??? ????? ??? ????? ??? ????? ??? ????? ??? ????? ??? ????? ??? ????? ??? ????? ??? ????? ??? ????? ??? ????? ??? ????? ??? ??? ????? ??? ??

4. ????? ?? ????? ???? ?? ????? ?????? ?? ???? ???? ??????

????? ?? ???? ?? ?? ?????? ?? ?? ???? ???.

1. Manual biting

?????? ????? ???? ?? ??? ??:

(1) ??? ??? ??? ?? ?????? (???? ?? ???? ?? ????? ??? ?????? ???? ??) ?? ?? ?? ??? ???? ?? ????? ???? ?? ???? ???? ??? ??? ???? ???? ?? ???? ??? ???? ??? ???? ???? ?? ?????? ?? ??? ???? ???? ???? ???? ??? ???? ??

(1) ??? ??????? ??? linear bite machines ??? elbow bite machines ???? ???? ???? ?? ?????? ?????? ????? ????? ????? ??? ??? ????? diameter pipes ?? ??? ???? ?? ???? ???? ????? ?? ??? ????? ??? ??? ????? ??? ?????? ???? ???? ??? ??? ????? ???? ??? ?? ??? ???????? ??? ventilation ducts ?? ?????? ??? ???? ??? ?? ??????? ??? ???? ???.

(2) ??? ?? ?????? ??????? ??? ?? ??? ?? ?? ?? ?? ?? ??? ?? ??? ?? ????? ?? ???? ??? ?? ????? ???? ?? ??? ?? ???? ??? ???? ?? ?? ????? ?? ????? ?? ????? ?? ??? ?? ??? ???? ??? ??? ??????? ???? ?????

(3) When circular air ducts from sheet metal, it is necessary to roll and bend the sheet metal. ???? ??? ???? ????? ???? ??? ??? ??? ?? ?????? ?? ????? ??.

??? ??? ?? ????? ???? ???? ?? ????? ??? ???? ?? ?????? ??? ???? ?? ??? ??? ??? ?? ??? ??? ???? ?? ??? ??.

1. ?????? ??????: ?????? ??? ?????? ?? ?????? ?????? ????? ??? ?????? ???? ??? ??? ??? ???? ???? ?? ???? ???? ?? ??? ???? ??? ???? ???? ?? ?????? ????? ???? ?? ???? ?? ??? ?? ????? ??? ??? ?? ????? ?? ?? ???? ?? ??? ??? ??? ???? ?? ??? ??? ????? ????? ??? ???? ?? ??? ????? ???? ?? ???? ?? ?? ??? ??? ??? ???? ?????? ????? ?? ?? ??? ?? ???? ?? ???? ?? (???? ??? ??? ?? ?? ????? ????? ?????? ??? ???? ?? ??????? ???? ?? ??? ??? ??? ?? ????? ??? ?? ???? ???). ????? ????? ?? ????? ????? ???? ???? ??

3.1 ?????? ??? ????? ?? ???? ??: CO2 welding, Ar welding, resistance welding, etc.

3.1.1 CO2 welding processing principle: Use protective gas (CO2) to mechanically isolate air and molten metal, preventing oxidation and nitriding of molten metal. It is mainly used for welding iron materials. Characteristics: firm connection and good sealing performance. Disadvantages: easy deformation during welding CO2 welding equipment is mainly divided into robot CO2 welding machines and manual CO2 welding machines.

3.1.2 Ar arc welding is mainly used for welding aluminum and stainless steel materials. Its processing principle and advantages and disadvantages are the same as CO2, and the equipment is also divided into robot welding and manual welding.

3.1 ?? ????? ?? ?? ????? ????????? ???? ?????? ???? ??? ?? ?? ???? ???? ???? ??.

3.2 ???????? ??? ????? ?? ???? ??: ???? ????? ????? ??? ????? ?????? ???. ?????? ????? ?? ????? ??? ????? ?? ?????? ????? ?? ???? ??? POP ????? ?? ???? ????

3.2

3.2.2 ????? ????? ??? ????? ????? ?? ?????? ?? ??? ????? ?? ??????? ???

??? ?????:

?????? ?????? ?? ??? ????? ?? ?????? ???? ??? ?????? ?? ????? ??? ?? ???? ?? ????? ???? ???. ??? ??? ??????? ???? ??? ????? ?????? ??? ???????????? ?????? ??? ????? ??? ????? ?????? ??? ???? ???? ???.

1. ??????????? ???? ???? ???? ???: ??????? (??? ????? ???? ????? ??? ????? ???? ????), ???? ???????? ???? ???????? ???

???? ???? ?? ?? ?? ???? ?? ??? ?? ??? ?????? ???? ????? ??? ?? ??? ?????? ??? ?????? ??? ??? ??? ???

2. ????? ??????? ?? ?????? ??? ????? ?? ???? ??: ??????? ??? ???? ??? ???. ???? ?? ??? ????? ?? ??? ?????? ??? ???? ??? ??? ?? ????? ?????? ?? ??? ?? ????? ?? ???? ??? ??????? ?? ??? ?? ?????? ???? ?? ???? ??? ?????? ?? ??? ?? ??? ?????? ??? ??? ??? ???

???? ???? ????

??? ????? ????? ?? ??? ???? ????? ???? ?? ?????? ??? ????? ?? ????? ????? ??? ??? ????? ???? ????? ?? ??? ??? ????? ??? ???? ??. ?? ?? ??? ???? manual bending ??????? ??? ???? ??. Manual bending ?? ???? ??????? ??? ????? ??? ???????? ??? ??? ?????? ??.

(1) ?? ???? ????? ?? ????? ???? ?? ???? ???? ?? ????? ???? ??? ?? ???? ????? ???? ?? ????? ?? ???? ?? ????? ?? ??? ??????? ??? ???? ??: ???? ?? ????? ????? ?? ????? ???? ?? (???? ???? ????? ????? ??? ???? ???? ????? ?? ?????). ??? ??? ?????? ????? ???? ?? ???? ???? ??????? ??????? ??? ???? ??. ???? ????? ?? ????? ???? ???? ?? ??? ??? ?? ????? ???? ????? ?? ???? ???? ???? ??. ???? ????? ?? ??? ??? ???? ??? ?? ???? ???? ?? ???? ??? ???? ?? ???? ?? ??? ???? ?? ??? ??? ???? ??. ???? ????? ?? ???? ??? ?? ????? ??? ?? ???? ????? ?? ???? ???? ??. ??? ???? ?? ??? ??? ??? ??? ??? ??? ??? ?? ???? ??

????? ???? ?? ??? ??? ?????? ?? ????? ?? ???? ????? ?? ??????? ???? ?????? ???? ??? ????? ????? ?? ??????? ?? ???? ??.

(2) ???? ???? ?? ???? ?? ???? ???? ???? ?? ??? ??? ???? ????

(3) ??? ?? ???? ?? ????? ???? ???? ???? ?? ????? ??? ?? ????? ?????? ?? ?????? ??? ???? ???? ??? ??????? ???? ?????? ??? ??? ???? ????? ?? ??? ??? ????? ??????? 1050 °C ?? ??? ??. ????? ????? ?? ??? ?? ?????? ????? ??? ????? ???? ?? ??? ??????? ??? ???? ??

(4) ??? ??? ??? ??? ???? ??? ????? ?????? ?????? ?? ??? ?? ???? ???

Core bend pipe

Core bent pipe is a type of pipe that is bent back along the mold using a core shaft on a pipe bending machine. ???? ??? ???? ?? ??? ??? ????? ?? ?????? ?? ?? ?? ???? ???? ?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ????? ?? ??? ??? ???? ?? ??? ????? ??? ??? ??? ????? ?? ???? ??? ????? ???? ????? ???? ??? ???? ??? ??.

??? ??? ??? ???? ?? ????? ???? ?? ???? ?????? ??? ???? ??? ????? ???? ???? ??? ????? ?? ?????? ?? ????? ??.

???? ???? ????

????? ????? ?? ???? ?фор??? ????? ?? ????? ???? ?? ????? ?? ?фор??? ?? ?????? ???? ?? ????? ??. ?? ??? ????? ????? ?? ?????? ?фор??? ?? ???? ???? ?? ?? ????? ?фор??? ????? ??? ???? ???? ?? ???? ????? ???? ?? ???? ????? ?? ??? ????? ?? ???? ???? ?? ??? ?? ??? ???? ?? ??? ????? ???? ?? ????? ?? ?фор??? ?? ?? ???? ??? ?? ?? ????? ?? ??? ???? ?? ?????

?? ???? ???? ???? ??? ?? ??????? ??? ???? ???. ?? ???? ???? ?? ??????? 1.5 ???? ?? ????? ?? ??? ?? ???????? ???? ???? ????? ?? ??????? ??????? ??? ???? ??. ??? ???? ??? ????? ???? ?? ??? ??????? ??? ???? ??? ?? ??? ??? ????? ??? ??? ??? ????? ?? ????? ???.

?? ?? ?????? ???? ??? ???? ?? ????? ??? ???? ???? ???? ??? ????? ????? ?????? ??? ????? ???? ??? ????? ??? ???? ??? ???? ?? ???.

???? ?????

?? ??? ?? ??? ?? ??? ???? ???: ???? ??? ???? ??? ???? ??? ???? ????

???? ??? ?? ????

?? ??? ??? ???? ??? ??? ???? ???? ??? ????? ??? ???? ???? ????? ??? ????? ???? ????? ??? ?? ?? ??? ???? ???? ???? ?? ??? ?? ?????? ?? ??? ???: ??? ??? ???????. ??????? ???? ???? ??? ????? ???? ??? ?????? ???? ?? ??? ??? ??? ???? ??. ????? ???? ?? ?????? ???? ???? ??? ???? ???? ???? ???? ??? ???? ???? ???? ??????? ??? ??? ????? ?? ??? ??????? ??? ???? ???.

(2)? ??? ?? ????

?? ?? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???

????? ???? ?? ??????? ????? ????? ??? ????? ?? diameter ??? ????? ?? ??? ?? ??? ??? ??? ??????? ????? ??? ???? ?? diameter ?? ??? ?? (????) ???? ?? ???? ????

????? ???? ?? ??? ???? ??????? ????? ?? ??: ???? ?? diameter? ????? ?? ???? ??? ???? ???? ???? D60106000

??? ??? ?????? ?? ????? ?????:

Sheet metal parts are composed of many components that must be connected in a certain way to form a complete product. ??????? ??????? ??? ???? ?????? ????? ???? ???? ??? ?????? ??????? ????? ??????? ??? ??????? ?? ??. ????? ???? ?? ?????? ????? ??? ???? mentioned ?????? ?? ???? ???? ??. ?? ?? ???? ??? ???? ??? ????? ??? ??? ??? ?? ??? ????? ??? ??? ??? ??

?????? ????? ??? ????? ????? ?? ?? ????? ???? ??? ???? ?????? ?? ??фор??? ?? ??????? ???? ?? ?? ??? ??? ???? ?????? ?? ????? ???? ?? diameter ?? ??? ??????? ??????? ??? ???????? ????? ??????? ?? ???? ??? ??? ????? ???? ?? ??? ?? ??? ?? ??? ?? ??? ?? ??? ?? ??? ?? ??? ?? ????? ?? ??? ?? ????? ?? ????? ?? ????? ?? ????? ?? ????? ?? ????? ?? ??????? ?? ???? ??? ????? ???? ?? ?????? ??? ?? ??? ?? ??? ?? ?????? ???? ??????? ?? ???? ??? ?? ?? ????? ?? ?? ?? ????? ???? ?? ??? ????? ?? ?? ?? ?? ???? ??? ??? ????? ?? ???? (???? ??????) ??? ???? ????? ???? ????? ?? ?????? ????? ?? ???? ???? ?? ???? ??? ?? ??? ?? ????