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Address
No. 826, Laoxianghuang Highway
Shanghai Jinbang Industrial Co., Ltd
No. 826, Laoxianghuang Highway
EC seriesCup protrusion testing machineTest content that can be done:
| ① Standard cup bulge test Automatic edge pressing and stretching to produce concave spherical surfaces, automatic shutdown for yield limit judgment |
| ② Deep pull cup test (convex test) Automatically punching out circular discs; Automatically adapt to uniform edge pressing; Automatic stretching; Automatic return of surplus materials; The edge pressure is variable, and all processes are completed within one set of molds. The size of the mold determines the diameter of the cup tube to be pulled out, and the height of the cup tube wall can be adjusted through the variable edge force technology of the EC series |
| ③ FLD/FLC (software required) Note: FLC mold and GOM-FLC imaging analysis system need to be configured |
| ④ Deep Drawing Test (LDR) Configure mold and sample alignment device |
| ⑤ Hole enlargement test |
| ⑥ Rolling edge test Note: After the deep drawing cup of this experiment is completed, the G1 type rolling machine is required to complete the rolling and bending process |
*EC600 and above models can be equipped with 5000C high-temperature molds
EC seriesCup protrusion testing machineIntroduction:
The EC series sheet metal forming experimental platform innovatively introduces dual stage hydraulic, dynamic load balancing, mold assembly mechanism and other designs, achieving the advantages of high testing accuracy, multiple expandable testing functions, large tensile thrust, and separately controllable edge pressure and tensile force of the sheet metal forming experimental platform. It can perform forming tests on various high-strength sheets with thicknesses exceeding 10mm. The testing platform plays a crucial role in the existing automotive lightweighting technology, sheet metal forming process research, material physical property testing, welding process evaluation, and lubricant grading. After our platform experiments, we can obtain * design parameters, reduce material waste in the industrial field, and achieve energy-saving and environmental protection effects

At present, the sheet metal forming testing machines on the domestic market are mainly limited by their structure, which adopts a multi column hydraulic compression and a screw to provide tensile force. This structure is complex, bulky, and provides a small range of tensile force, and can only test sheet metal with a thickness of less than 2mm as specified in the national standard GB15825; The tensile force range, testing accuracy, and repeatability of EC series products * ISO, GB, DIN, ASTM and other testing standards
Application fields of EC series cup convex testing machine:
板材成形性能研究
Research and evaluation of stamping process simulation and forming process parameters (at room temperature and 5000C high temperature)
Weld bead inspection and evaluation of welding process indicators
Evaluation and Grading of Lubricating Oil
Paint performance testing
Quality assessment of packaging materials (performance of cans, varnish)



Technical characteristics of EC series cup convex testing machine:
1. Dual stage hydraulic stretching and edge pressing system, each stage can independently control displacement, speed, direction, and thrust
2. Edge pressure separation: Equipped with an automatic edge pressure separation device, it ensures that the edge pressure load is evenly distributed around the circumference, and the structure guarantees asymmetric sliding of materials caused by uneven edge pressure, improving the accuracy of tensile test results
3. In the industry, the deep drawing cup one-time forming technology enables automatic cutting of circular plates, automatic adaptation to uniform edge pressing, automatic stretching, and automatic material return
4. Innovative mold assembly replacement method makes mold replacement simpler and more convenient, preventing mold assembly errors; Higher mold to neutral
5. Hydraulic stretching mechanism: The punch automatically advances at a constant speed, with infinitely adjustable speed. The system has a high thrust and the entire testing process is smooth and fluid
6. Experimental die neutrality: within 0.05mm
7. Machine shutdown method: ① The sensor senses a rapid decrease in the tensile force of the punch, and the yield limit of the sheet is reached, automatically stopping the machine. ② Manual shutdown: If cracks are observed, stop the machine immediately
8. The system adopts dust-proof design to adapt to harsh working conditions; Satisfy long-term high load test operation
9. Method of obtaining tensile force: spoke type pressure sensor, oil pressure conversion
10. Full digital data processing platform, high-speed dynamic data sampling frequency exceeding 1MSPS, high-speed dynamic data acquisition module, high-speed embedded microprocessor with DSP algorithm, high data acquisition density
11. Output: GOM-FLC system signal interface, USB connection to PC interface
12. The host comes with a human-machine interface, which can independently monitor the experimental process and can also be monitored through a USB interface
13. Adjustable rolling wheels, easy to move
14. The system is equipped with a buffer brake protection device, ensuring smooth start and stop, environmentally friendly and energy-saving design, and high energy efficiency ratio
Technical parameters of EC series cup convex testing machine:
| attribute | model | EC130 | EC200 | EC280 | EC600 | EC1000 | EC1200 | |
| Basic attributes | tensile force | Electro hydraulic 130KN | Electro hydraulic 200KN | Electro hydraulic 300KN | Electro hydraulic 600KN | Electro hydraulic 1000KN | Electro hydraulic 1500KN | |
| blank holder force | Electro hydraulic 45KN | Electric hydraulic 100KN | Electric hydraulic 180KN | Electro hydraulic 450KN | Electro hydraulic 700KN | Electro hydraulic 1200KN | ||
| The largest sample size | 120mm | 120mm | 240mm | 240mm | 300mm | 300mm | ||
| monitoring method | touch screen | touch screen | touch screen | touch screen | touch screen | touch screen | ||
| The maximum stretching displacement | 60mm | 60mm | 100mm | 100mm | 180mm | 180mm | ||
| displacement accuracy | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | ||
| Method of obtaining tensile force | Bridge sensor | Bridge sensor | Bridge sensor | Bridge sensor | Bridge sensor | Bridge sensor | ||
| power supply | AC220V | AC220V | AC220V | AC380V | AC380V | AC380V | ||
| specific application | Cup protrusion of paint film | ● | ● | ● | ● | |||
| Plate cup convex | ● | ● | ● | ● | ● | ● | ||
| Deep pull cup | ● | ● | ● | ● | ● | ● | ||
| Tuer | ● | ● | ● | ● | ● | ● | ||
| Stretching LDR | ● | ● | ● | ● | ● | |||
| SWIFT/ LDH | ● | |||||||
| FLC/FLD | ● | ● | ● | |||||
| reaming | ● | ● | ● | ● | ● | ● | ||
| Welding cup convex | ● | ● | ● | ● | ● | ● | ||
| Unequal thickness welding cup convex | ● | ● | ● | ● | ||||
| Bend Test | ● | ● | ● | ● | ||||
| Lubricating oil testing | ● | ● | ● | ● | ● | |||
| Hydraulic expansion test | ● | ● | ● | |||||