Sheet metal forming processes are those in which force is applied to a piece of sheet metal to modify its geometry rather than remove any material. The applied force stresses the metal beyond its yield strength, causing the material to plastically deform, but not to fail. By doing so, the sheet can be bent or stretched into a variety of complex shapes. Sheet metal forming processes include the following:
l Bending
l Roll forming
l Deep Drawing
l Stretch forming
Bending
Bending is a metal forming process in which a force is applied to a piece of sheet metal, causing it to bend at an angle and form the desired shape. A bending operation causes deformation along one axis, but a sequence of several different operations can be performed to create a complex part. Bent parts can be quite small, such as a bracket, such as a large enclosure or chassis.
V bending and Wipe bending
Roll forming
Roll forming, is a metal forming process in which sheet metal is progressively shaped through a series of bending operations. The process is performed on a roll forming line. Each station has a roller, referred to as a roller die, positioned on both sides of the sheet. The shape and size of the roller die may be unique to that station, or several identical roller dies may be used in different positions. The roller dies may be above and below the sheet, along the sides, at an angle, etc. the roller dies are lubricated to reduce friction between the die and the sheet, thus reducing the tool wear. Also, lubricant can allow for a higher production rate, which will also depend on the material thickness, number of roll stations, and radius of each bend. The roll forming line can also include other Sheet Metal Fabrication operations before or after the roll forming, such as punching or shearing.
Deep drawing
Deep drawing is a metal forming process in which sheet metal is stretched into the desired part shape. A tool pushes downward on the sheet metal, forcing it into a die cavity in the shape of the desired part. The tensile forces applied to the sheet cause it to plastically deform into a cup-shaped part. Deep drawn parts are characterized by a depth equal to more than half of the diameter of the part. These parts can have a variety of cross sections with straight, tapered, or even curved walls, but cylindrical or rectangular parts are most common. Deep drawing is most effective with ductile metals, such as aluminum, brass, copper, and mild steel. Examples of parts formed with deep drawing include automotive bodies and fuel tanks, cans, cups, kitchen sinks, and pots and pans
Stretch Forming
Stretch forming is a metal forming process in which a piece of sheet metal is stretched and bent simultaneously over a die in order to form large contoured parts. Stretch forming is performed on a stretch press, in which a piece of sheet metal is securely gripped along its edges by gripping jaws. The gripping jaws are each attached to a carriage that is pulled by pneumatic or hydraulic force to stretch the sheet. The tooling used in this process is a stretch form block, called a form die, which is a solid contoured piece against which the sheet metal will be pressed. The most common stretch presses are oriented vertically, in which the form die rests on a press table that can be raised into the sheet by a hydraulic ram. As the form die is driven into the sheet, which is gripped tightly at its edges, the tensile forces increase and the sheet plastically deforms into a new shape. Horizontal stretch presses mount the form die sideways on a stationary press table, while the gripping jaws pull the sheet horizontally around the form die
Sheet Metal Forming,Sheet Metal Forming Services,Custom Sheet Metal Forming,Precision Sheet Metal Forming Suzhou FCE precision electronics Co., LTD , https://www.sjfukeyifcesz.comHigh Efficiency Energy Saving Injection Molding Machine
High Efficiency Energy Saving Injection Molding Machine adopts proportional pressure and flow control, the pressure and the speed can be adjusted, stable movement curve and gentle shock, the computer is imported from Industry family.The LCD displaying screen with high clarity has Chinese and English language to use.Close-loop PID temperature control with the advantage of high precision.The operating table of the injection moulding machine have two safety, one is machine safety, another is electrical safety, that ensures the operators's safety.
Clamping Unit
5-point twin toggle clamping system by modular optimization software designing.Strong clamping with rapid and stable, tomeet the strict clamping condition.
Mould height adjustment by hydraulic driven gear system with rapid and stable.
Automatic mould height adjustment as per the setting clamping force(optional).
Injection Unit
BaIanced double injection cylinder technology makes screw to have evenly distributed force during fast injection,
Five_star Hydraulic motor with big torque,
Ensure the excellent plastic molding condition.
Research and develop different screws according to difierent iniection condition, suitable for the progressive demand and greatly improve the injection quality.
Control Unit
Imported computer special for Injection Molding Machine with multiple functions and precise control processing.
World famous electrical components and high quality circuit hardware with stable and reliable running.
High Efficiency Energy Saving Injection Molding Machine:
1) LCD computer control with big display screen
2) Hydraulic double proportional valve
3) Hard chrome plated high tensile strength steel tie bars
4) Generous space for fitting large moulds
5) Large opening stroke
6) Two position transducers to control Clamping and Injection
7) Four stages of injecting, independent velocity and pressure control
8) Hydraulic mould height adjustment device
9) Screw cold-start prevention device
10) Melt decompression control
11) Screw back pressure control
12) Multiple hydraulic ejection
13) Differential high speed clamping
14) Centralized lubrication system
15) Low pressure mould protection device
16) Mechanical safety interlock
17) Double electrical safety interlock
18) Oil return filter
19) Oil tank with inner stainless steel container
Technical Parameters
Model
Clamp tonnage (KN)
Ejector tonnage (KN)
Heat power(KN)
Max.Pump pressure (MPA)
Pump motor power(kw)
Machine dinension(m)
Machine weight(t)
Oil tank capacity(L)
BST-1000A
1000
50
7.6
16
11
4.3*1.5*1.6
3.4
180
BST-1320A
1320
50
8.2
16
13
4.5*1.6*1.7
3.9
200
BST-1400A
1400
50
8.2
16
13
4.8*1.6*1.7
4.2
220
BST-1650A
1650
70
8.2
16
15
5.0*1.6*1.7
5
250
BST-1800A
1800
70
11
16
15
5.3*1.6*1.75
5.5
250
BST-2050A
2050
70
11.6
16
17
5.4*1.6*1.75
6
270
BST-2300A
2300
70
11.6
16
18.5
5.7*1.8*2.0
6.5
300
BST-2600A
2600
70
15.5
16
25
6.1*1.7*1.8
8
350
BST-3000A
3000
80
15.5
16
25
6.5*1.8*1.8
9
370
BST-3400A
3400
80
17.5
16
30
6.7*2.0*1.9
10.8
400
BST-3850A
3850
80
17.5
16
30
7.0*2.2*2.0
11.5
400
BST-4500A
4500
85
20.5
16
37
7.3*2.3*2.4
13.8
450
BST-4800A
4800
125
23.4
16
40
8.3*2.2*2.2
16.2
600
BST-5200A
5200
125
28.1
16
43.5
8.6*2.2*2.25
20
750
BST-5800A
5800
125
28.1
16
48.5
8.75*2.2*2.3
21.8
850
BST-6500A
6500
6500
37.1
16
55
9.2*2.2*2.4
26
1000
BST-7500A
7500
1800
40.9
16
67
10.7*2.3*2.7
38
1200
BST-8500A
8500
180
42.5
16
74
11*2.4*2.75
45
1300
Welcome you to contact with me
Tel:0086-512-58905519Â Â Fax:0086-512-58905519
Mobile phone:008615262319373
Website:Www.Sky-machine.COM
Sky-machine.En.Made-in-China.Com
Model NO.: 160ton
Computerized: Computerized
Certification: CE, ISO9001:2008
Usage: Pet, PP, PVC, HDPE, LDPE, PC, PA, PS, ABS
Product1: Pet Preform, PE Cap
Product2: PVC Fitting and Connector
Product3: Plastic Chair, Bucket, Vegetable Basket
Product4: Plastic Spoon, Fork,Bowl
Product5: Plastic Bearing Tray
Product6: Plastic Toy
Product7: Plastic Tool
Product8: Plastic Switch, Socket
Power Saving: Servo Type
Trademark: Sky Machine
Transport Package: Non-Fumigation Plywood
Specification: 380ton
Origin: China
HS Code: 84223010