The tradition of Ersa’s Technology Days for the Bavarian car manufacturer with three letters was continued at the end of June. A delegation of 13 people from Munich spent two days in Wertheim – otherwise the participants will push new developments and optimise ongoing production processes at suppliers. As usual, the event was divided into two parts – consisting of theory and practical hands-on part, in which the theoretically acquired knowledge and findings were implemented directly on machines and influencing variables with regard to machine parameters such as soldering quality, throughput and “first pass yield” were determined. As at the previous Technology Days, a comprehensive dialogue was quickly established – real challenges in daily production at suppliers, defined tasks and developed approaches to solutions were discussed together. Ersa was once again the ideal partner – the majority of suppliers rely on machines from the market leader Ersa, while the entire machine and rework spectrum is available for hands-on tests in the Ersa demo and application centers. While one group at the VERSAPRINT 2 Ultra³ stencil printer tracked the influence of squeegee pressure and speed via 3D evaluation, the second group created a soldering program. The speed and temperature were changed by 5-10% to measure effects on the solder profile – whereby the flat modules always looked the same optically, but the solder quality was influenced. Another group soldered selectively, changed parameters and then x-rayed the assemblies to show differences in soldering quality. Here it became directly visible why Ersa is a technological leader through the interaction of flux preheating, soldering, program creation, machine software and components. The multi-wave technology, which is soldered 100% error-free every 30 seconds with three motor controls, caused amazement among the participants time and again.
“In close cooperation with our automotive customers, we have been able to build up an immense, documented wealth of experience in recent years, which gives us a unique selling point today,” explained Ersa General Sales Manager Rainer Krauss. After adapting the layouts in the direction of controlled and operator-guided wave soldering processes, this application is now also used again for high quantities and medium numbers of inner layers. Here Ersa convinces with low unit costs also thanks to high production throughput with low power and nitrogen consumption. The rework demonstration during the Tech Days also sparked enthusiasm – especially in prototype construction and product development, where it is used in a semi-automatic form.
What participants particularly appreciate at the exclusive technology seminars (also in this case): the time with and for each other. Separated from everyday business, the group exchanged ideas, redefined tasks and openly discussed requirements. Ersa once again supported this part of the event with a guided tour of the Hammermuseum, including a demonstration of a iron forge and a closing dinner at the “Schwarzer Bock”. On the following day 02 of the Technology Days the focus was again on electronics production from 8:30 a.m., at 5:00 p.m. the event ended with a cordial farewell and return journey to Munich.