"Gravity Die Casting. A permanent mould casting process, where the molten metal is poured from a vessle of ladle into the mould, and cavity fills with no force other than gravity, in a similar manner to the production of sand castings, although filling cn be controlled by tilting the die."
Sometimes referred to as Permanent Mould, GDC is a repeatable casting process used for non-ferrous alloy parts, typically aluminium, Zinc and Copper Base alloys.
The process differs from HPDC in that Gravity- rather than high pressure- is used to fill the mould with the liquid alloy.
GDC is suited to medium to high volumes products and typically parts are of a heavier sections than HPDC, but thinner sections than sand casting.
There are three key stages in the process.
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Sunard believes that Michelin’s operating profit in 2011 will continue to increase despite the pressure of rising raw materials. He reiterated the company’s long-term goals set in October last year. Including, as of 2015, the operating profit of the company after removing non-recurring items will reach more than 2 billion euros (about 2.8 billion US dollars).
At a general meeting held in Clermont-Ferrand, a French headquarters in central France, Sunard said: "This year, Michelin will spend an additional 1.8 billion euros on costs due to rising raw material prices."
He said that the company's new products have been put into production, so that the company's raw material supply is not threatened, but the fluctuation of raw material prices is still worth the company's concerns.
It is reported that Michelin has raised the price of its products in April this year and has balanced the rising cost of raw materials. Sources said that in order to keep up with the rising cost of raw material costs, the company will raise prices again in the next 9 months to offset its cost increase of 400 million euros.
In early May, Michelin announced that the company plans to increase the prices of truck tires to cope with rising raw material prices.
Gravity Die Casting
Jean-Dominique Senard, the next chief executive appointed by French tire manufacturer Michelin, said recently that the company is currently facing unprecedented pressure due to rising raw material prices. Although the company has not stated when the current CEO, Rory, will retire, the company has already appointed Sunard to replace him.