51吃瓜

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

??? ?? ??????????? ??? ?? ?????????????????, ?????????????, IT ??? ?????? ????????? ????????? ???????????, ?????? ?????? ??????????? ??? ??????? increasingly ??????????, ??? ????????? ?????? ?????? ??????????? ??? ?????

2. ?? ??????????? ??? ?????????????? ????? ?????????????? ????? ????????? ???????, ?????????, ??? ??????? ??? ????? ??? ?? ????? ???????, ????, ??? ?????????? ??? ?????? Shee ?? ????? ????? ?????? ??? ??? ????????? ??? ????????????, ???? ?????????? ?????? ??? ????? ????????????.

3. Sheet metal parts are mostly made of metal sheets and pipe fittings. Due to 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. Moreover, they can also be applied to external repair work of automobiles.

4. ????????? ?????? ??????????? ??????????? ??? ?? ???????? ?? ??? ??????????????, ?????????????, ????????, ??? ??????????????. ?????????? ??????, ??? ???????? ??? ???? ????? ?? ????????? ?????????? ????????????? ???????? ??? ?????? Sheet Metal Stamping, ???? ??? ???????? ??? ?????? ????? ?????????????? ????????? Sheet metal processing ??? ???

Sheet metal material

1. Electrolytic plates: SECC (N) (fingerprint resistant plate), SECC (P), DX1, DX2, SECD (stretch plate). ?????????? ??????????: HRB50+- 5, ????????????: HRB32~37

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

3. ????????um ?????; ???, ??? (1035), ??? (6063), ??? (5052), ??.

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

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

Sheet metal processing technology:

?? ?????????? ?????????????????????? ??? ????? ???????????? ??????? ???: ????????, ????????, ????????, ???????? (???????), ???????, ??????? ????? ??????, ?????? ????? ??? ?????? ?????????????? ???? ?? ?????? introduces galvenokārt ???????? ?? ???? ??????????????, ???, ???????, ??????, ??? ???????.

(1） ??????? ?? ????

1. ???? ?????? ????????? ????? ????? ?????? ??? ?????? ????????? ?????, ????? ?? ??? ?????? ?? ??????? ?? ??????? ??????????? ????????? ??? ??? ?????? ????????? ????? ??? ?? ?????? ?????? ???? ??? ?????????? ?????, ????? ????? ???

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

3. ??? ?????????? ???? ??? ???????????? ??? ???? ????? ????? ??? ?? ?????? ?????????? ??? ??????? ????? ?????????, ??? ??? ????? ???? ?????????? ??? ?????? ?? ??????????? ???????, ??????? ??? ?????? принадлежат ?? ??????????? ?????????????. ??? ?? ?????????? ??? ?? ???? ??? ???? ????? ????????? ??????????? ??? ????????? ??? ??? ?? ?????? ??????????, ?? ??? ?????? ?? ?????????????????? ??????????, ??? ?? ?????????? ??? ?? ????, ?? ???????? ????? ??? ?? ????

(2) Sheet metal processing method

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

1.1 ???????? - ??? ?? ???????? ?????? ?? ???????? ??? ?????????? ??????? ??? ????????? ??? ????????? 0.2mm ????? ?????, ??????? ?????? ??? ?????? ??????? ????? ?????? ?????? ???????????.

1.2 ????????? ??? ???????? - ??? ?? CNC ????????? ?????? (NC) ????? ?? ??????? ????????? ?????? ????? ????????. ????? ????????????? ??? ????????? ?? ????????? ??? ??? nekā 0.1mm, ???? ??? ?????? ??? ???????????? ??? relatively ??????? ????????????? ???? ??? ?????, ???? ??? ?????? ??? ???? ????????????? ????? ???? ???? ??????, ??? ?????? ???? ?? ????

1.2 ?? ????? ?????? ????? ????? ??? CNC ????????? ??????: ???????? ??? ????????.

1 ????????? ???????? ?????? ????? ??? ?????????? ??? ?? ???????? ?????? ?? ???????? ???? ??? ??????? ???????, ??? ???, ???? ????????????? ??? ???????? ?????? ??? ??? ???????? ??????, ??? ??????

1 ????? ????????????????????? ??? ???? ?????????? ??? ?? ?????????? ?? ???????? ????????? ??? ????? ???????????? ??????, ???? ??? ????????????????? ??? relativ

???:

Sheet metal forming is a major processing method in sheet metal processing. ?????????????? ??? ????? ??????? ??? ????? ?????: ??????????? ?????????????? ??? ?????????????????????. ???????????????????? ????? ????? ?????? ?? ?? ????????????????? ??????????? ????? ?????? ?????? ??? ??? ??????? ??????. ???? ??? ??????????? ?????? ??????????? ??? ?????????? ?????? ????? ????????????? ?? ?????????????, ??? ??????? ?????????????? ???? ???????. ???????????????????? ??? ????? ??? ?? ????? ?????????? ??? ?????. ?? following methods are used mainly: bending, edging, trimming, arching, curling, and shaping.

??? ????????? ?????? ?????? ???????? ???: ??????? ?????????, ?????????? ?????????.

2 ??? ??????????????? ????????? ??? ???? ??? ????????? 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 together in a certain way to obtain the desired product Sheet metal connections can be divided into welding, riveting, threaded connections, etc.

(1） ??? ??????

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

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

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

??????? ????? ???? ??? ??? ???? ?????? ??? ?? folgje??? ?????:

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

(2) Single bite is used for circular bends, back and forth bends, and horizontal seams of air ducts.

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

(2） ??? ???? ??? ???????

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

?? ???? ???? ?? ?????????????? ??? ????? ??? ????????, ?????????????????? ??? ?? ???????

2. ????? ???? ????? ???, ???? ???????????? ???, ??? ??????? ???, ??? ?? ??????? ????? ???? ???? ???? ?????? ?? ?? ??? ????, ???? ?? ??????? ????? ???? ??? ??????? ???? ??? ????? ???? ?? ??? ????. ???????, ?? ??? retention ??? ?????? ?? ???? ???? ??

3. ????? ??????? ?????????, ????? ?? ??????? ?????? ??? ??? ???? ??? ???? ???? ??? ???? ??? ?? ??? ???? ??? ??? ??????? ????, ??? ??? результат? ?? ????? ??????? ??? ??? ??? ?? ??? ????.

4. ?? ???-?????? ???? ??????? ???? ????? ????? ???? ??? ????? ?? ???? ??? ?????.

?? ???? ??? ????? ????? manually ????? ??????????????.

1. ????? ????

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

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

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

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

(3) ???? ???? ???????? ???? ducts ??? ????? ??????, ?? ??? ?????? ?? ???? ??? ????? ?? ????? ??????. ??? ???? ????????????????? ??????, ??? ????????? ?? ?????????? ??? ???????????? ??????????.

??? ??????????? ?????? ??? ???? ?????? ???? ?? ????????? ??????? ??? ?????? ??????, ???? ???????? ?? ??????

1. Basic principle: The basic principle of rolling and bending is shown in the figure. ??? ??????????? ??? ????? ???? ???? ??? ?????????? ???????, ??? ?? ???? ????? ?? ????? ??? ?????????? ???????? ??? ??? ???????. ??? ??? ???? ??? minder ??? ??? ????? ???? ??? ?????????????, ??? ????????????? ??? ?????, ???? ??? ?????? ????????????????????. ??? ????????????? ??????, ???? ?????? ???????? ?????????? ?? ?????? ???????????? ??? ??? ????? ??? ?? ??????? ?? (????? ?? ????? ??? ???? ??? ?????? ???????? ?????? ???? ?????? ????? ??? ???????bility ?? ?????, ??? ???? ???? ????? ??? ?????? ??? ???????? ??? ???????? ???????.

3.1 Welding can be divided into: CO2 welding, Ar welding, resistance welding, etc

3.1 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 ?? ????? ??? ????? ?? ????xing ?????, ?????? ?????, ????.

3.2 ?????? ??? ????? ??????? ???: ??????????????? ??? ????? ???????, ??. ????????? ?????????????? ??? ????? ????????????, ?????????????, ??? ??????? ?????????????.

3.2.1 Riveting connection is the process of pressing screws and nuts into the workpiece so that they can be connected to other parts through threads.

3.2.2 ??? ?????? ??? ?? ???? ???? ????? ?? ?????? ??? ????? ????? ???????????? ???????.

???????????

?? ????????????? ??? ????????????? ???????? ???? surface treatment ???? ????????? ??????????? ????? ??????? ???? ???? ???????????. ??? ??? ??????????? ??????????, ??????????? ????? ??????????????, ?pr???, ??? ?????? ????????????????????????.

1. Electroplating is divided into: galvanizing (color zinc, white zinc, blue zinc, black zinc), nickel plating, chrome plating, etc;

??? ????????????????? ??? ?? ?????????? ?? ???????????? ????? ??? ??? ???? ???? ??? ??????????, ???? ????? ?? ???????????? ??? ???????????? ????.

2. ??????? ???? ??? ??????? ??? ????? ?????: ??????? ???? ??? ??????? ?????????. ???? ?? ??????? ??? ??? ??????????, ??? ???????? ????? ???????? ??? ??? ?????????? ??? ??? ????????? ??? ?? ??????銃 ??? ????, ???? ???????? ?? ???????? ???? ??? ?????????? ??? ???

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

??? ??????????? ???? ???? ???? ????? ???? ???????????, ??? ????? ??? ????? ??? ?????, ???? ?? ??????????????? ?? ????? ??????? ?????. ??? ??? ????, ??? ???? ?? ??????? ???????. ?? ?????? ???????? ???? ??????????? ????? ????? ???????????, ????, ???????? ??? ?????

(1） ??? ??? ??????? ??????? ??? ??? Sand filling, ???? ?? folgje??? ?????? ???????? ?? ??????????? ?? ?????????? ??????section: ??????? ?? ??? ??? ??????? (???? ????? ?????, ??????, ??? ?????? ??????? ????? ??????). ????? ?????? ?????????? ????-???????, ??? ???? ?????? ?????????. ????? ????? ?????????, ??? ???? ??? ???? ??? ???? ??? ??? ?? ???????? ???? ???????. ?? ??? ?? ???? ???????? ??? ???? ??? ???? ??????? ?? ???????? ?? ???? ???????? ??? ??? ?? ?????????? ???? ?? ??? ????? ??? ??????????. ???? ????? ?????????, ??? ???? ??? ?????? ??? ???? ?????????????? ????? ???? ??? ???? ???? rein, ?????, ??? ?????.

????? ???? ??? ??? ?????? ?????????, ??? ?? ??? ??? ??? ???? ?? ???? ????? ????????, ????? ???? ???? ???????? ????????.

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

- ??? ????????? ???? ???? ????? ??? ??????????????, ??? ??? ?????????????????????? ????? ??????? ???????? ???? ??? ?????? ????? 1050 °C. ????? ??????? ????? ?????? ????? ?????????? ???? ??? ?????? ????-?????????.

(4) ?? ??????? ??? ???????? ??? ??? ????? ??????? ???? ?? ???????? ????????APART.

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

?????????? ??? ??? ?? ????? ???? ??? ???? ????? ????? ??? ??? ??? ?? ??????????? ???? ?? ???????????? ??????. ??? функция ???? ??? ????????????????? ??? ?? ???????????? ?? ?????????????? ???? ??? ???????? ??? ??? ????? ???? ??? ?? ??????? ??? ??????? ????? ????? ????? ?????, ?????? ?????, ????????????????, ????-???? ???????, ??????????? ???????, ??? ????????? ??????.

?? kwalite? ???? ?? ??????????????? ??? ???? ?????????? ??? ??? ???????, ???? ??? ????????? ???? ??? ?????????????? ???? ?????????? ???

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

?????????? ??????? ??? ??? ?? ????? ?? ???????????? ??? ????????????? ???? ??? ???? ??? ?????? ??? ??? ???????? ??????????????????? ???? ?? ??????? ??????. ?? ???? ?? ???????? ??????? ??????????? ?? ?????????? ??? ???? ??? ?????? ????????????? ??? ??????? ??????????????????, ????? ??? ?????????? ???? ???? ??? ???? ??? ?

?????????? ????? ??? ????? widely ??????. ??? ??? ???????????????? ???? ??? ???? ??? ??? ?????? ??? 1.5 ??? ??? ????????? ???? ??? ???, ????? ?????? ????????? ????? ?????. ???????? ?????????? ??? ????? ???? ?????? ????? ????? ??? ??? ?????? ????????? ??? ??????? ?????? ?????????.

???? ??? ?? ?????????? ???????? ???? ??????? ??? ?? ???? ????????????????????, ???????????????????????, ?????????????, ??? ???????????????????.

????????

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

[1] - ????? ???? ???

Seamless steel pipes are divided into hot-rolled pipes, cold drawn pipes, extruded pipes, etc. ???? ??? ?????????циональном ???????, ???? ????? ????? ?????: sirkula? ??? ?????????. ????????? ???? ??????? ???? ??????????, ???????, ?????ngu????, ???????????????, ??. ???? ??????? ???, ?? ????? ????? ????? ??? ???-????? ?????????, ??? ???-????? ????????? ????? ???????? ?????? ????? ????? ???????? ???????.

(2） ???????? ???? ???

Welded steel pipe, also known as welded steel pipe, is made by welding steel strips and comes in two types: galvanized and non galvanized. The former is called white iron pipe, and the latter is called black iron pipe.

?? ????????????? ???? ???? ??? ????? ????????? ??? ??????? ?????? ?? ????????? ???????? ??? ?????????, ??? ??? ????????? ?????? ?? ????????? ???????? (??????).

??? ??????????????????? ????? ???? ??? ???: ????????? ????????, ?????????, ??? ????, ?? ????? ???? ???? ??? D60106000

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

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

?????????????? ?????? ??? ?? ????????????? ???? ???? ?? ?????????? ??????????? ???? ???? ??? ??? ??????????? ?? ????????? ???? ??? ????? ?? ??? ???? ????????, ?????????????? ??? ??????????? ???????? ?? ??????????? ??? ???????? ??? ??? ???? ???, ???? ???? ??? ?????????? ??????????? ??? ??? ???? ??? ??? ???????? ??????????? ??? ??? ???????? ?????. ???? ???? ??? ?????????? ??? ??? ???????? ????? ?? ?????????? ???????? ??????? ??? ???? ???, ??? ??????? ?????? ?? ???? ??? ??? ??? ???????? ??? ????? ??????????????? ?????? (?? At the same time, it should also have good sealing strength (pressure resistance) to ensure that the medium inside the equipment will not leak out from the joint under working pressure.