Inside ICI Ask the Experts, A Resource for Members


“Ask The Experts.” This service allows members and non-members alike to raise technical issues they are currently confronted with to the Institute’s Technical Committee. All questions will be responded to via e-mail and responses are posted in the Members Only area.


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Q Q


Sample Questions The following are just a sampling of the questions that have already been answered and posted:


What effect does titanium content (from FeTi deox additions) in 17-


4PH and 15-5PH have on the alloy? Does it contribute to hot tears?


We are doing some precision glue-ups


of small (1.5”) wax


patterns and need an adhesive that will fl atten out to near nothing or consistently the same small amount maybe up to .005”. Less is better. Ideally it would melt out with the wax so there is no added residue imparted into the pour. It’s hard to imagine achieving the minimal precise gap between parts with a hot wax technique. An adhesive would make for an easy assembly. Has anyone heard of such a product?


Q Q


Q


Would using mullite as stucco instead of silica have an impact


on grain structure?


I have a product casting request for casting from a polycarbonate


3d printed pattern. I would like to know how to properly cast this and how to do a burnout of wax used for runner, gate and the polycarbonate pattern. Please advise if there is any literature on this.


We are having excessive shell run outs and when not, excessive


fi nning due to shell weakness. Both green and hot strength are lower than


6 ❘ June 2016 151446 Ad_Investment Casting_3.5x5inch_02.indd 2 9-10-2015 16:04:43 ® www.paramelt.com o better service the investment


casting industry, the Investment Casting Institute has developed


your typical industry standards. We are consistently monitoring our humidity levels while we are dipping primary and secondary coats, and forget about it when we are drying. Is it as important to maintain high humidity throughout the drying cycles? if so, What are the preferred ranges of relative humidity to maintain?


Q


I would like to know if there’s a process for 3D printing a mold


that wax can be injected into. The mold must have fi ne surface detail, similar to that of a 3d printed wax. I’d prefer to save money on printing multiple waxes and just have one mold printed and make the waxes myself. Any advice would be much appreciated.


Our Assurance of Your Anonymity All topics addressed through “Ask the Experts” are treated as Company Confi dential. Each ICI staff member is bound by a confi dentiality agreement on fi le in the Institute’s corporate offi ce. Questions sent to “Ask the Experts” are rewritten, removing all references to the identity of the submitting company and/ or individual.


The resulting question


is then provided to the Technical Committee with no reference whatsoever to Member name or location.


The


Technical Committee reviews the inquiry and returns a response to the Institute. The ICI responds directly to the submitter and posts the question and response to the Ask the Experts page in the Members Only area of the website. Anyone can ask a question but only Members are able to view all the questions and answers.


global manufacturing and consistent supply of high performance virgin and reclaim waxes


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