CLOSED: Improvement of End Opening Accuracy of Ultra-high Strength Steel Slideway Parts
CLOSED: Safe, Smart & Sustainable – The buildings of tomorrow
12/08/2019
CLOSED: Recovery and Utilization Technology of Sensible Heat of High Temperature Mobile Metals
16/08/2019
| City: | Shanghai |
| Challenge Title: | Improvement of End Opening Accuracy of Ultra-high Strength Steel Slideway Parts |
| Challenge Owner: | NETC |
| Challenge Website: | N/A |
| Challenge Award: | Top 5-10 winners of the challenge contest will get 100,000 RMB award with no conditions. Top 10 solutions will each get 10,000RMB award. |
| Other Awards: | Possibility to connect and work with local Chinese partners. Contract opportunity with Chinese companies on further R&D collaborations. |
| Theme / Sector: | Industrial productions |
| Challenge Blurb: | With the increasing application level of material strength, the product shape is becoming more and more complex and the requirement of dimension accuracy is increasing (especially the requirement of end dimension accuracy is difficult to meet), which brings new challenges to the application of ultra-high strength steel materials and roll pressing technology. The first type is the body structure reinforcement. Taking the side wall threshold reinforcement as an example, the main material used at present is ultra-high strength steel with thickness specification of 1.2-1.4 mm and tensile strength of 980-1200 MPa. The design requirement of dimension accuracy at the opening features of both ends is usually (+0.5mm), but it is difficult to meet the design requirement of dimension accuracy due to the factors such as springback control, cut-off opening and material performance fluctuation in the actual roll-pressing process. The second type is guideway parts. Taking the inner and outer slides of automobile seat as an example, the accuracy requirement of cross-sectional dimension design is usually (+0.1mm) or (+0.2mm), which is much higher than the dimension tolerance requirement of common stamping parts (+0.5mm). |
| Challenge Description: | Taking a threshold inner plate part (1200MPa, 1.4mm thickness sheet) as an example, roll-pressing feature parts are designed. Through optimization of roll-pressing process and off-line process, the accuracy of end opening of roll-pressing feature parts is controlled within (+0.5mm) Verify the validity of the method by the way of sample trial production. |
| Open for Submissions: | August 2019 |
| Deadline for Submissions: | 31 December 2019 |
| Finalist Announcement: | January 2020 (TBA) |
| Winner Announcement: | January 2020 (TBA) |
| Who Can Apply: | All |
| Registration Details: | Via NETC Gtech mall application page |
For application assistance: Peter Bøgh Hansen on pmh@di.dk
