Re: Forged vs. ?

On Sep 24, 3:46 pm, "* * Chas" <verktygj...@xxxxxxxxxxxxxxx> wrote:

"Melt forged" was/is a BS term for injection molding, a method for making
high quality castings.

I think you meant die casting, not injection molding. Although the
processes are conceptually very similar, when it's done with metal,
it's called die casting. When it's done with plastic, it's called
injection molding. At least, that's true everywhere I've come across
it.

A casting is still a casting and doesn't have the benefits of increased
metal density that comes from forging.

Hmm. Well, forgings definitely tend to be stronger per unit weight,
but there are a wide variety of casting processes. Some are clearly
better than others regarding accuracy, finish, mechanical properties,
etc.

As Andrew noted, it's certainly possible to make perfectly acceptable
parts by casting. The cast parts may be a bit heavier, but the
difference is probably undetectable to most riders.

When you get to the point where you're counting grams, then yes, you
probably want forged parts.

Unless you go with carbon fiber. ;-)

- Frank Krygowski

.

Relevant Pages

  • Re: Forged vs. ?
    ... I think you meant die casting, not injection molding. ... Die casting is used to make castings from aluminum, magnesium, zinc alloys ...
    (rec.bicycles.tech)
  • Re: Forged vs. ?
    ... The term injection molding usually refers to the plastics industry but it ... molding and metal die casting. ... I was unfamiliar with the term thixoforming. ...
    (rec.bicycles.tech)
  • China bolang casting manufacturer
    ... manufacturer and exporter of Aluminum Die Casting, Zinc Die Casting, ... Ningbo BoLang manufacturer will be a beneficial choice. ... parts aluminium castings, aluminium metal mining machinery,, ...
    (sci.archaeology)
  • Re: Forged vs. ?
    ... The term injection molding usually refers to the plastics industry but it ... molding and metal die casting. ... I was unfamiliar with the term thixoforming. ...
    (rec.bicycles.tech)