Presentation by Professor John Campbell OBE - Latest Techniques for High Quality Castings For more information about CASTcon or the Cast Metals Federation please visit: www.castmetalsfederation.com Best of British Casting
Nearly 30 years ago I was involved with producing tooling to cast the aluminum block for the (Cosworth) Ford 4.6 L used in the Lincoln Mk VIII. The tooling used many of these techniques. There were others too. We maintained a 0.007 (inch :) ) tolerance, and 4.5 mm wall thickness. The block contains some "novel" geometry around the end of the integrated water-pump housing :). The "valley", where the two flows come together, used a crisscross patter to hold back the top of the flow where the metal may have cooled and/or contain bubbles, so the hotter/purer metal can flow together, mix, and join better. The pattern was made using a large chunk of carbon and EDM. So many things were passed on to me from these pattern makers. Many of them are gone now. The pattern shop (Wisconsin Pattern, Racine WI) is gone. At the time there was a strong push by the shop, union, and Ford to bring work back to the 'states (as it were) and inject it with new technologies. The shop sponsored my venture into contract consulting, encouraging me to leave the large CAD/CAM/CAE software company Ford standardized on at the time. I provided customized software, and indepth support regarding the CAD/CAM products. But, as I told them, I learned far more from them than they learned from me. Still, they (including the union) seemed more than happy teaching and informing me, including sessions in the wood shop and time on manual and CNC machines, and producing 100's of production tool paths and continual face to face interaction with machinists. All helped me to refine the tool paths I produced. I stayed on to win the production tooling contract for this block. Then for 3 more prototypes and a production set of boxes (Triton 4.6, 5.4, and 6.8 L, 2-V8's and a V10) for Ford's Next Generation Truck (i.e. NGT's) engines. Heady times. Manufacturing gets into one's blood and it never leaves.
Wow, what an explanation - great teacher. I think this is a must watch for any hobby caster looking to start getting a little more serious on the subject.
David, you can purchase ceramic foam filters from Canfield & Joseph, Del Sol Services, or Porter Warner. Brands are Selee, Foseco, and other Off Shore variants.
He made the top of the bag a funnel shape while blowing into it. The point is that the air he was blowing was drawing in even more air that from his lungs.
Great lecture but really really stupid cameraman and editor. What’s the point of showing a screen we can not even seen what’s on it? Beyond stupid and total waste of time for what otherwise would have been a great lecture.
@@muslimmukhtarkhanov8194 Потому что воздух в стальном фасонном литье (тяжелее, грубо, 15 кг.), который увлекается потоком расплава и приводит к браку - это миф. Они отлили годное, потому что фильтры поймали неметаллические включения типа шлака, футеровки и пр., вероятно. Потом, сифонная заливка может и вредить.
@@kosee4008 Константин, мне кажется вы хороший знаток литейного дела. Можно ли вам написать на эл почту и посоветоваться кратко по некоторым вопросам. Дело в том, что я с недавних пор увлекся литьем с применением 3д принтера (для печати форм- выплавляемые модели) и мне нужно посоветоваться с экспертами, если можно так выразится, этого дела
I found this immensely informative and very useful. all of the phenomena discussed was practicable at home as much as at the industrial level. Very very easy to design a few gates and other patterns to create the environment described. The only part that might be more difficult is adding the filters, but as mentioned above, these filters are available to buy.
