| Re: Galvanizing process
Re Hot galvanized steel! I´m using the same material as Volvo, Saab, Mercedes and most of the other. It is a high strength material for deep drawing that is hotgalvnized during the process. The tensile strength is 380N/mm and very good to deep drawing since we press almost every panel to get the accuracy. The first one´s was milled by Roy but I nowdays lasercut all parts to get top quality since there it can be a problem with movement when milling and then the tolerancechain moves. I will post 2 pic so you can see that the weldability is 100% and the Zintex that we used in the beginning is not the material to use in my oppinion when there are better material to use. I have discussed the choise of material with several guys that have long experience in the area and I fell that I have choosen right. I´m using 6 very heavy watercooled industrial spotwelders with high force between the jaws every each individaual equipped with differnt javs to be able to get in the chassie and make quality weld. I´m posting some pic so you guys can see. We are running the project from Sweden and if anyone is interested and want to know more they can contact me directly. About corrosion this material is outstanding compared to Zintec. To hotgalvanise a complete monocoque would result a trip to the scrapyard. I did that on some spaceframe chassies in beginning of the 90´s and it was one hell of an job to get them straight in a bench. The monocoque would look live a winescrew. We have built 80 more tools and a closing production really fast.
Best reg!
Goran |