Manufacturing Tips: Five Casting Technologies To Consider For Your Design

I received a telephone call one day(some years ago when tractor feed paper was the norm for computers) from a gentleman who we shall call “Mr. Andrews”. A friend of his had given him my name, telling him I would give him advice about what to do with his invention.

Take for example a plastic comb, in making it, raw plastic is bought for the Custom Injection Molding Suppliers and tax is paid. Then the plastic is used to make the comb which is sold to a distributor and tax is again paid to the added value. The distributor now sells the comb to a trading company for export and tax is again paid to the added value. When the comb is exported, there may be a tax rebate which will range from 0% to 17%. This will depend on the product classification against the 17% tax paid.

Unlike other molding techniques, a hot sheet, or film is stretched over a mold to form the required shape. There is a thin gauge, and a thick gauge variant, with thin gauge giving us items like disposable cups, and thick gauge supplying things like car doors, and plastic pallets.

Alignment is of paramount importance during assembly. All your efforts will be in vain if the result is a crooked airplane. The wings and tail should be perfectly aligned with the fuselage. The best way would be to use tape for holding the big pieces together to check their alignment before glue is applied.

Mold. Metal is poured(gravity feed) into the mold. After the material has cooled, the frame is released and the sand falls away. Leaving the parts to be ground and cleaned.

The third piece of bad news came from my patent attorney. An identical device had been patented in Austria in the 1950’s. It wasn’t patentable! Apparently the patent search Mr. Andrews had obtained was through an inventors club at a big discount. The patent search was only performed on U.S. patents and did not search foreign patents.

Along with a strong ferrule, the broadhead must also have durable, thick blades. We should not accept blades that are brittle and break easily. I like blades that have plenty of steel backing them. For a replaceable-blade head, I prefer a minimum blade thickness of at least .025-inch. I’ve found anything less will bend easily and be prone to breakage.

Many India Sourcing agents outsource many molding and casting supplies to other parts of the world. Companies in India that provide excellent services and help to produce mold exactly the way you want them to be.

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Manufacturing Tips: Five Casting Technologies To Consider For Your Design

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