Print Page - OT : Mold Making

Title: OT : Mold Making
Post by: tekebird on August 30, 2007, 07:06:01 PM

Anyone here know how to make an Aluminum mold for a lead casting. Needs to be substantial enough for numerous casting

Title: Re: OT : Mold Making
Post by: Jerry Liebler on August 30, 2007, 07:10:29 PM

What is the shape of the casting? Aluminum alloys are easily machined and many can be welded. What kind if machining or welding is needed will depend on what is being cast.
Regards
Jerry 4107 1120

Title: Re: OT : Mold Making
Post by: tekebird on August 30, 2007, 07:55:28 PM

Jerry,
it is a odd shape with compound curves etc. but a flat top

presently we have a mold made out of some concrete type material......but after 40 or more castings it is starting to let go and I have a new plug that is slightly different that I would like a mold for

the current mold is a two piece mold with an open top......we fill it up to the top of the mold

Title: Re: OT : Mold Making
Post by: buddydawg on August 31, 2007, 04:16:02 AM

What size is the mold you are trying to make? We have a full machine shop here and make molds for injection, cast and roto-molding, shoot me some specs and I may be able to help you out.

Title: Re: OT : Mold Making
Post by: prevost82 on August 31, 2007, 10:21:02 AM

I don't think you can use lead as a mold as it has a lower melting point (327.5 ° C) than aluminum (660.37 °C)
Ron

Title: Re: OT : Mold Making
Post by: tekebird on August 31, 2007, 10:40:49 AM

not trying to use lead as a mold....but have a mold made for lead end product

Title: Re: OT : Mold Making
Post by: prevost82 on August 31, 2007, 10:44:53 AM

Should have read it better .... :P
Ron

Title: Re: OT : Mold Making
Post by: tekebird on August 31, 2007, 02:05:28 PM

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