Automatic cup protrusion and sheet forming testing machine

Automatic cup protrusion and sheet forming testing machine

Product category: Cup protrusion and sheet forming testing machine
Product Name: GBS-100 Automatic Cup and Sheet Forming Testing Machine
GBS-300A automatic cup protrusion and sheet forming testing machine
Product manufacturing standards:
1. GB4156-84 "Test Method for Metal Cup Bulge"
2. GB5125-85 "Test Method for Non ferrous Metal Cupping"
3. GB/T15825.1~15825.8--1995 "Forming Properties and Test Methods for Thin Metal Plates",
4. GB2611-92 General Technical Requirements for Testing Machines

1、 Main purpose and scope of application
Stamping production is one of the basic methods of plastic processing, which is widely used in the aerospace, transportation machinery industry, as well as electronic and electrical appliances. As a processed sheet metal, its stamping performance directly affects the quality and production efficiency of the finished product. Different stamping processes result in varying stress states, deformation characteristics, and the relationship between the deformation zone and the force transmission zone of the sheet metal, thus requiring different stamping performance requirements for the sheet metal. In order to facilitate the study of the performance requirements of various stamping processes on sheet metal, stamping processes are classified into two types based on the stress-strain state of the deformation zone: tensile deformation and compression deformation.
This testing machine is a device used for conducting tensile process tests on metal sheets and strips. Testing the plastic deformation performance of metal sheets and strips during the testing process can also determine the bulging performance index of metal sheets. Test the anisotropy function of non-ferrous metal sheets.
Configure the corresponding molds to conduct corresponding metal sheet forming tests. Testing the ability to resist cracking during the stamping process of metal sheets. According to the basic stamping forming method, the following can be carried out:
1. Axisymmetric deep drawing test;
2. Hole enlargement test;
3. Cone cup test;
4. Convex ear test;
5. Rigid bulging test;
Cup protrusion test, which uses a steel ball or spherical punch of a certain specification. When a certain clamping force is applied to the periphery of the sample, the steel ball or spherical punch applies pressure to the sample until a penetrating crack is formed. At this time, the punch is pressed into the depth (mm), which is the cup protrusion value IE of the test plate. This cup protrusion value is used to determine the plastic deformation performance of the material
The non-ferrous metal cup test involves using a cylindrical punch of a certain specification to press a circular sample with a certain outer diameter between a clamping die and a cup punch die. Under the pressure applied by the punch, plastic deformation occurs radially and bends, and a cylindrical cup is drawn in one go. At this time, the edge of the cup forms a protruding ear like protrusion. The protrusion characteristic index, the protrusion rate e, is measured and calculated to determine the anisotropy of the material
The sheet metal forming test can measure the bulging performance index (IE) of the metal thin plate (according to GB-4156), the ultimate tensile ratio (LDR) or load ultimate tensile ratio (T) of the tensile performance index, the expansion rate (λ) of the expansion performance index, the cone cup value (CCV) of the "tension+bulging" composite forming performance index, the specific forming performance index bulge rate (e), and the surface ultimate principal strain for measuring and drawing the sheet metal forming limit diagram (FLD).

2、 Equipment model and main technical parameters

1. Main technical parameters of GBS-100 automatic cupping and sheet forming testing machine
Number Technical Specification Name Technical Specification Remarks

Serial Number	Technical specification name	technical specifications	notes
1	Thickness of standard cupping test plate	0.2—3mm	Ultra thin sheet size 0.2mm
2	Non standard cupping test plate thickness	0.2—4mm
3	Maximum width of the board	100mm
4	Maximum stroke of punch	60mm
5	Clamping piston stroke	19-21mm
6	Maximum stamping load	100KN
7	Maximum clamping load	40KN
8	Deformation measurement accuracy	1%
9	Load accuracy	±1%
10	Standard cup protrusion punch specifications	SΦ20±0.05	ф27±0.05mm
11	Non standard cup protrusion punch specifications	Sф15±0.05mm Sф8±0.02mm Sф3±0.02mm	Special Orders
12	Nonferrous metal cup mold	Plate thickness: 0.1-3mm	Special Orders
13	Convex mold expansion mold	φ50mm	Plate thickness>0.91-1.3mm Plate thickness 0.45-0.64mm Plate thickness>0.64-0.91mm
14	Tensile test mold	φ50mm	Plate thickness>0.91-1.3mm Plate thickness 0.45-0.64mm Plate thickness>0.64-0.91mm
15	Expansion test mold	φ25-0.05 mm φ40-0.05，mm	Plate thickness>1.00-2.00mm Plate thickness 0.20-1.00mm
16	Cone cup test mold	φ12.70，mm φ17.46，mm	Plate thickness 0.5-＜ 0.80mm Plate thickness 0.8- ＜ 1.00mm
17	Convex ear Test Mold	φ32-0.05mm	Plate thickness 0.1-2.00mm

2. Main technical parameters of GBS-300 automatic cup protrusion and sheet forming testing machine

Serial Number	Technical specification name	technical specifications	notes
1	Thickness of standard cupping test plate	0.45-4mm	Ultra thin sheet size 0.1mm
2	Non standard cupping test plate thickness	0.45-4mm
3	Maximum width of the board	180mm
4	Maximum stroke of punch	100 mm
5	Clamping piston stroke	21-31mm
6	Maximum stamping load	300KN
7	Maximum clamping load	100KN
8	Deformation measurement accuracy	1%
9	Load accuracy	±1%
10	Standard cup protrusion punch specifications	SΦ20±0.05	ф27±0.05mm
11	Non standard cup protrusion punch specifications	Sф15±0.05mm Sф8±0.02mm Sф3±0.02mm	Special Orders
12	Nonferrous metal cup mold	Plate thickness: 0.1-4mm	Special Orders
13	Convex mold expansion mold	Convex mold: 50mm in diameter Concave inner diameter of φ 51.8mm φ52.56mm φ53.64mm φ55.20mm φ57mm	Plate thickness 0.45-0.64mm Plate thickness>0.64-0.91m Plate thickness>0.91-1.3mm Plate thickness>1.3-1.86mm Plate thickness>1.86-2.50mm
14	Tensile test mold	Convex mold: 50mm in diameter Concave inner diameter of φ 51.8mm φ52.56mm φ53.64mm φ55.20mm φ57mm	Plate thickness 0.45-0.64mm Plate thickness>0.64-0.91mm Plate thickness>0.91-1.3mm Plate thickness>1.3-1.86mm Plate thickness>1.86-2.50mm
15	Expansion test mold	Convex mold: 25mm in diameter φ40mm，φ55mm Concave inner diameter: 27 mm, 44 mm, 63 mm	Plate thickness 0.20-1.00mm Plate thickness>1.00-2.00mm Plate thickness>2.00-4.00mm
16	Cone cup test mold	Convex mold with a diameter of 12.70 mm φ17.46，mm φ26.99 mm φ20.64，mm	Plate thickness 0.5-＜ 0.80mm Plate thickness 0.8- ＜ 1.00mm Plate thickness>1.00-2.00mm Plate thickness>2.00-4.00mm
17	Convex ear Test Mold	Convex mold with a diameter of 32-0.05mm Concave inner diameter: φ32.28，φ32.35，φ32.43，φ32.50，φ32.60，φ32.75，φ32.90，φ33.05，φ33.20，φ33.35，φ33.50，φ33.80，φ34.10，φ34.50，φ35.00，φ35.60，φ36.30，φ37.00，φ38.50，φ39.80。	Plate thickness 0.1-3.00mm

3、 Main structure and working principle
This machine adopts hydraulic clamping and stamping, and the stamping speed can be pre-set or manually controlled. The cup protrusion mold is convenient for loading and unloading samples. After the sample is sent in, pressing the automatic button can complete clamping and stamping. If there is a crack in the sample, it will automatically stop and be easy to observe. It has a peak memory function, which automatically remembers the maximum impact force and deformation height. The display of deformation depth and impact force can be achieved through digital instruments, touch screens, or computer displays. It can be operated with buttons and the deformation depth value can be pre-set. This machine can be configured with multiple display modes such as simple digital display, touch screen display, computer control, etc
1. Control principle of testing machine
This testing machine currently uses a digital display device to display the clamping force value, impact force value, and cup protrusion value. It can collect and display signals from two sets of pressure sensors and one set of displacement sensors. For the convenience of users, it is also equipped with a set of manual buttons for operation. According to user needs, the machine can also be configured with a microcomputer for operation and data collection. The model is GBS-60W microcomputer controlled automatic cupping tester.
2 Product features:
(1) Sample deformation, stamping load XLCD touch screen display (or computer display)
(2) Peak memory function
(3) Equipped with automatic parking function when cracks appear on the board
(4) Clamping load pressure adjustment
(5) Stretching depth (cupping value), using a grating ruler (displacement sensor), with a reading resolution of up to 0.01mm.
(6) Clamping load pressure touch screen display
(7) Flip type fixture makes it easy to replace the punch and load/unload the sample
(8) The machine is also equipped with a set of manual operation buttons
(9) According to user selection, the machine can be equipped with a computer interface (485), a computer operating system, and dedicated measurement and control software
(10) The external dimensions of the testing machine are less than 1300mm × 800mm × 1300mm (for reference only)