Are All These Machines Needed To Make One Diecast Car - How Diecast Cars And Trucks Are Made Part 2 - a podcast by Logan Skeele

Are All These Machines Needed To Make One Diecast Car - How Diecast Cars And Trucks Are Made Part 2

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In Part two of our series we will talk about the plastic parts that are needed for our model.  Today, there are not many 100% diecast metal model vehicles made today.

First comes the idea of the car or we want to make.  Then we need a computer.  3d scanner.  A rapid protype machine such as a 3D printer, a CNC machine.  A heat treating machine, an electric furnace to melt the metal.  A High pressure diecasting machine.  A machine to remove sharp edges and smooth the castings.  A spray booth.  A airbrush and needed equipment.  A pad printing machine.  And the necessary people to operate the various machines.   What's next?   A plastic injection machine, and a large vacuum chamber, and more molds.

We have a fully painted and detailed diecast shell of a car.   Now we need to make the plastic parts. These parts include the under carriage, place to mount the axles, parts to be chromed or gold plated such as bumpers wheels and other parts to name a few.

Now we have to add to our growing list of machines a Plastic Injection machine.   A plastic injection machine works similar to the High Pressure Hot metal injection machine.  The plastic is heated to a molten state and forced under pressure into the steel mold.

In the plastic injection process, the parts of the molds are pressed together with a hydraulic ram and the molten plastic is injected into the molds through the sprues under pressure.  The mold is cooled and opened, and the part is ejected.  The mold closes and the cycle is repeated until all the needed parts have been produced.  The parts are attached to a sprue much like the metal diecast parts.

Now, what’s a sprue?  For those of you who are unfamiliar with the term a sprue is a channel through which metal or plastic is poured or injected into a mold.

The next thing that happens to the parts are removed and separated into bins. The parts that need no paint will remain as they are.  Into the second bin goes the parts that need to be painted. Into the third bin goes the parts that need to be chrome or gold plated.

The plating is done by a process known as the Vacuum Metalizing Process.

What is this process?  Vacuum metalizing plastic is a process that allows you to create a layer of metal on a substrate, usually of another material. It involves heating the metal coating material inside a vacuum chamber until it vaporizes. The lack of pressure in this chamber drives the metal’s boiling point downward. This allows the metal vapor to condensate and form a layer over the top of a substrate of your choice.

Oh, Wait now are cars need wheels and tires.  Our next episode will cover how wheels and tires are made.  Stay tuned!

Toy Talk is hosted by Logan Skeele Founder of Advantage Diecast, LLC

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