Wall of thermostat assembly
WHAT
The housing needs to be formed around the guiding part of a thermostat assembly. The rubber insert is held between housing and guiding part and needs enough compression to provide a reliable seal for the wax. Forming the lip of the housing must be possible in short cycle time, and with minimal axial force to prevent collapsing the housing wall.
WHY
Prior to contacting BalTec, the thermostat was formed with a press, which lead to collapsing the wall and loosing material.
HOW
Successful forming is possible with the roll forming process, as the material being formed is gently folded and not collapsed. This allows complete overlap of the guiding part and proper closing of the housing is achievable, without swelling of the housing outer diameter. The advantage is a higher production efficiency, reduction in inspection efforts and scrap.
Facts & Figures
| Reference No. | BCHA1012 |
| Riveting Force | Force: approx. 3-6 kN. Forming time: approximately 1 second. |
| Riveting Process | Roller forming, rolled inward |
| Material | Brass, Stainless steel |
| Geometry dimensions | Typically Ø 14 – 25 mm. Overall height 25 – 50 mm |
| Tools | Two roller forming head, form rollers with customized profile |
| Devices | Roll forming machine with roll forming head, RL06, RL12, EB15 |
| Possible Processs Controls | HPP-25 process control, HPPi for ELECTRIC |
| Interfaces | USB, UDP, Ethernet, OPC-UA, Industry 4.0 suitable |
| Area of Application | automotive, cooling systems, radiators |
| User Benefits: Process | Achievable criteria regarding dimensions. Seal tight closure of housing. |
| User Benefits: Economic | Reduction of scrap, cost savings through short term ROI |
Project implemented by BalTec AG - Switzerland
For further questions or detailed information contact:
BalTec AG
Obermattstrasse 65
8330 Pfäffikon, Switzerland
Phone +41 44 953 13 33
E-mail baltec(at)baltec.com