BUP Sheet Metal Testing Machines
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Industries
- Metals
Test load
- 100 - 1,000 kN
Type of test
- Cupping test
- Earing test
- Hole expansion test
- Forming limit curve:
Standards
- ISO 20482
- DIN EN 1669
- ISO 12004
- ISO 16630
Flexible testing solution for sheet metal forming
With the BUP sheet metal testing machines, characteristic values of the ductility of sheet metals are determined and evaluated. Sheet metal testing machines support development processes in the characterization of new alloys and new metalworking technologies, as well as in eventual series production.
The benefits of sheet metal testing machines are based on flexibility, easy and fast fixture changes for different tests, and the individually controllable integrated functions such as holding down, punching, drawing and ejection.
Technical overview
| Type | BUP 100 | BUP 100 (air-cooled) | BUP 200 | BUP 200 (air-cooled) | |
| Item No. | 1043578 | 3009640 | 1043580 | 3005322 | |
| Test load, max. (ram force, max.) | 130 | 130 | 200 | 200 | kN |
| Machine dimensions | |||||
| Total height, approx. | 1255 | 1208 | 1255 | 1208 | mm |
| Table height | 903 | 903 | 903 | 903 | mm |
| Width | 850 | 850 | 850 | 850 | mm |
| Depth | 1200 | 1200 | 1200 | 1200 | mm |
| Weight, approx. | 650 | 650 | 650 | 650 | kg |
| Punch force, max. | 275 | 275 | 275 | 275 | kN |
| Clamping force, max. | 275 | 275 | 275 | 275 | kN |
| Specimen dimensions | |||||
| Blank (punchable) | Ø 118 | Ø 118 | Ø 118 | Ø 118 | mm |
| Blank, insertable, max. | Ø 165 | Ø 165 | Ø 165 | Ø 165 | mm |
| Blank, insertable (with centering finger), max. | Ø 105 | Ø 105 | Ø 105 | Ø 105 | mm |
| Sheet metal strip width, max. | 128 | 128 | 128 | 128 | mm |
| Sheet metal thickness, max. | 6.4 | 6.4 | 6.4 | 6.4 | mm |
| Test tool measurements | |||||
| Drawing die, outer, max. | Ø 155 | Ø 155 | Ø 155 | Ø 155 | mm |
| Drawing die, max. | Ø 60 | Ø 60 | Ø 60 | Ø 60 | mm |
| Read-off accuracy, ram stroke | 0.01 | 0.01 | 0.01 | 0.01 | mm |
| Read-off accuracy, ram force | 0.01 | 0.01 | 0.01 | 0.01 | kN |
| Read-off accuracy, clamping force | 0.01 | 0.01 | 0.01 | 0.01 | kN |
| Read-off accuracy, deep drawing speed | 0.01 | 0.01 | 0.01 | 0.01 | mm/s |
| Ram stroke (travel of deep drawing piston) | 0 ... 80 | 0 ... 80 | 0 ... 80 | 0 ... 80 | mm |
| Deep drawing speed, max. | 1200 | 1200 | 1200 | 1200 | mm/min |
| Coolant | |||||
| Coolant connection | G1/2" | - | G1/2" | - | |
| Required coolant temperature | 15 … 28 | - | 15 … 28 | - | °C |
| Coolant requirement at 20°C water temperature | 4 | - | 4 | - | l/min |
| Air cooler behind testing machine | - | x | - | x | |
| Noise level in idle mode at 1.8 meter height | 52 | 58 | 52 | 58 | dB(A) |
| Power specifications | |||||
| Electrical connection | 3 x 400 | 3 x 400 | 3 x 400 | 3 x 400 | V (3Ph, N, PE) |
| Electrical connection with option tC II | 3 x 400 | 3 x 400 | 3 x 400 | 3 x 400 | V (3Ph, N, PE) |
| Power consumption | 10 | 10 | 10 | 10 | kVA |
| Frequency | 50 | 50 | 50 | 50 | Hz |
| Back-up fuse | 32 | 32 | 32 | 32 | A |
| Type | BUP 400 | BUP 600 | |
| Item No. | 1043581 | 1043583 | |
| Test load, max. (ram force, max.) | 400 | 600 | kN |
| Machine dimensions | |||
| Total height, approx. | 1380 | 1380 | mm |
| Table height | 983 | 983 | mm |
| Height to tool head | 1185 | 1185 | mm |
| Width | 1100 | 1100 | mm |
| Depth | 1775 | 1775 | mm |
| Weight, approx. | 1600 | 1600 | kg |
| Punching force, max. | 400 | 600 | kN |
| Clamping force, max. | 400 | 600 | kN |
| Specimen dimensions | |||
| Blank (punchable) | Ø 250 | Ø 250 | mm |
| Blank, insertable, max. | Ø 250 | Ø 250 | mm |
| Blank, insertable (with centering finger), max. | Ø 220 | Ø 220 | mm |
| Sheet metal strip width, max. | 260 | 260 | mm |
| Sheet metal thickness, max. | 10 | 10 | mm |
| Test tool measurements | |||
| Drawing matrix, outer, max. | Ø 250 | Ø 250 | mm |
| Drawing die, max. | Ø 120 | Ø 120 | mm |
| Read-off accuracy, ram stroke | 0.01 | 0.01 | mm |
| Read-off accuracy, ram force | 0.01 | 0.01 | kN |
| Read-off accuracy, clamping force | 0.01 | 0.01 | kN |
| Read-off accuracy, deep drawing speed | 0.01 | 0.01 | mm/s |
| Ram stroke (travel of deep drawing piston) | 0 ... 120 | 0 ... 120 | mm |
| Deep drawing speed, max. | 1000 | 1000 | mm/min |
| Coolant | |||
| Coolant connection | G1/2" | G1/2" | |
| Coolant water requirement at 20 °C water temperature | 7 | 7 | l/min |
| Noise level in idle mode at 1.8 meter height | 53 | 53 | dB(A) |
| Power specifications | |||
| Electrical connection | 3 x 400 | 3 x 400 | V (3Ph, N, PE) |
| Electrical connection with option tC II | 3 x 400 | 3 x 400 | V (3Ph, N, PE) |
| Power consumption | 17.5 | 17.5 | kVA |
| Frequency | 50 | 50 | Hz |
| Back-up fuse | 32 | 32 | A |
| Type | BUP 1000 | |
| Item No. | 1043584 | |
| Test load, max. (ram force, max.) | 1000 | kN |
| Machine dimensions | ||
| Total height, approx. | 1522 | mm |
| Table height | 1104 | mm |
| Height up to tool head (without protective screen), approx. | 1361 | mm |
| Width | 1210 | mm |
| Depth | 1970 | mm |
| Weight, approx. | 2100 | kg |
| Punch force, max. | 1000 | kN |
| Clamping force, max. | 5 ... 1000 | kN |
| Specimen dimensions | ||
| Blank (punchable), max. | Ø 250 | mm |
| Blank, insertable, max. | Ø 250 | mm |
| Blank, insertable (with centering finger), max. | Ø 270 | mm |
| Sheet metal strip width, max. | 260 | mm |
| Sheet metal thickness, max. | 10 | mm |
| Test tool measurements | ||
| Drawing die, outer, max. | Ø 250 | mm |
| Drawing punch, max. | Ø 120 | mm |
| Read-off accuracies | ||
| Read-off accuracy, ram stroke | 0.01 | mm |
| Read-off accuracy, ram force | 0.01 | kN |
| Read-off accuracy, clamping force | 0.01 | kN |
| Read-off accuracy, deep drawing speed | 0.01 | mm/s |
| Ram stroke (travel of deep drawing piston) | 0 ... 150 | mm |
| Deep drawing speed, max. | 750 | mm/min |
| Coolant | ||
| Coolant connection | G1/2" | |
| Required coolant temperature | 15 … 28 | °C |
| Coolant requirement at 25°C water temperature | 10 | l/min |
| Connected load | ||
| Electrical connection | 3 x 400 | V (3Ph, N, PE) |
| Electrical connection with option tC II | 3 x 400 | V (3Ph, N, PE) |
| Power consumption (full load), approx. | 19 | kVA |
| Frequency | 50 | Hz |
| Back-up fuse | 32 | A |
The Most Important Test Tools for BUP Sheet Metal Testing Machines
Earing tests
In the earing test for determination of earing tendency to DIN EN 1669, metal blanks are punched or inserted and drawn into cups (metal in-flow). The deep drawing characteristics of the metal are determined via the percentage ear height ratio on the edges of the cups.
Forming limit curves (FLC)
During the determination of the forming limit curve the maximum multi-axial ductility of sheet metal is tested.
Cupping test to Erichsen (ISO 20482)
For the performance of cupping tests a die is pressed into a clamped metal sheet until a crack appears. There is no in-flow of the sheet metal. The cupping test is used to assess drawing formability.
Hole expansion tests
In a hole widening test, a hole is made in a metal sheet, the outer edges are clamped, and the metal is deep drawn until a crack appears.
Typical Test Methods for Sheet Metal Forming
Typical test methods for sheet metal forming include the cupping test to Erichsen (ISO 20482) and Olsen (ISO 20482), the earing test for determination of earing tendency (ISO 11531 / EN 1669) and hole expansion tests to ISO 16630.
Particular importance is given to determination of the forming limit curve (FLC) to ISO 12004, which is used in a two-stage experiment to generate critical deformations in tests, which are then compared with existing deformations on real components and evaluated. Once the forming limit curve has been determined, it is used at the component design stage to help optimize forming, thereby speeding up the development process.
