Investment Casting : Investment Casting Ferrous Non Ferrous Castings Gravity Pressure Die Casting Graded Casting for Pump Electric Motor Valves

Wax Injection

Pattern removal

Wax assembly

Shell building

Preheating Shell

Part Finishing

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	Investment Casting
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INVESTMENT CASTING

	PROCESS
	ADVANTAGE
	PHOTO GALLERY

PROCESS

Ferrous Investment Castings are castings that utilize Stainless Steel, including 300/400 Series Alloys and any Precipitation Hardened Steel Alloys. Non-Ferrous Investment Castings utilizes copper based alloys, zinc based alloys, aluminum and bronze. Investment Casting. Often called lost wax Process casting, is regarded as a precision casting process to fabricate near-net shaped metal parts poured from almost any alloy including: stainless steel, aluminum, brass, bronze and copper etc. The investment casting process consistently provides high integrity (sound) and dimensionally accurate castings. Investment casting uses a mold that has been produced by surrounding an expendable pattern with a refractory slurry that sets at room temperature. The pattern (usually of wax ) is then melted or burned out, leaving the mold cavity. Investment casting is also known as the “lost wax process” and as “precision casting”. Please contact Dilip Industries to learn more about how we can work together to help to reduce your company’s costs using either the investment casting (lost wax process) or other casting processes. Mr. Dilip Mistry may be reached or contact via email at: info@castingdi.com Dilip Industries has provided investment casting solutions for quality-minded companies in a wide variety of industries including.

Automotive	Pump & Valves	Pharmaceutical M/c.Parts
Aeronautic	Tools & Hardware	Food & Dairy Machinery
Agriculture	Textile Machinery	Farming & Fabrication Equipments
Defense Equipments	Power Transmission	Material Handling Equipments
Earth Moving Machinery	Electrical Components	Machine Tools
Marine Engineering	Packaging Machinery	General Engineering Parts
Surgical Equipments	Environment Equipments

WAX INJECTION : The process begins with production of a heat disposable pattern. This pattern is usually made by injecting molten wax into a metal die or mold.

PATTERN ASSEMBLY : The wax patterns are attached by the gate to a central wax runner system. The runner system is called a sprue. Patterns, runners, and pouring cup compromise the cluster or tree.

SHELL BUILDING : The shell building technique involves dipping the assembly into a ceramic slurry and then into a bed of extremely fine sand. After drying, the process is repeated. Up to 7 layers may be applied in this manner.

DEWAX OPERATION : The completed shell is placed in a steam autoclave where the wax pattern melts and runs out through the gates and pouring cup.

FIRING THE SHELL MOLD: Preheat : Molds are placed into a kiln at 2000 degrees, these cures and harden the mold.

CASTING : Molds are removed from the kiln while the mold is still hot to reduce thermo shock, metal is then poured directly into sprue cup.

SHELL REMOVAL: Knockout : Once molds have cooled for approximately one hour the ceramic shell is knocked off from the metal castings and runner system.

CASTING REMOVAL: Cut Off : Castings are cut from the sprue tree.

FINISHING : Minor finishing operations such as fettling and grinding are under taken to produce a metal casting identical to the original wax pattern.

INSPECATION : All Dimension are Inspect By Qualified Experience personal with well Equip majoring Instruments and also chemical/physical/mechanical test of casting.

ADVANTAGE

	The process is capable of making parts from prototypes to high volume. Investment Casting tooling is capable of making over 1 million parts per tool.
	Excellent cast details with regards to cast letter i.e. logo, names, part number, etc
	Reduced machining due to castings designed to near net shape
	Investment castings can have undercuts, blind holes, thru holes almost any geometric shape or size
	Yields lighter, stronger metal parts with superior finishes and repeatability.

All of the above advantages reduce your casting costs. MACHINING: Aluminum, brass & bronze, along with other non-ferrous and ferrous alloys, machine easily with today’s CNC & digital N.C. machining centers. Starting with a near net shape casting, machining times are reduced which, in turn, save cost. TOLERANCES: Generally, +/- .005 per inch Premium tolerances of +/- .003 per inch.

DRAFT: There is NO DRAFT required in the lost wax investment casting process.

PHOTO GALLERY

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