Brass Lost Wax Investment Casting Parts with CNC Precision Machining.
Copper and copper-based alloys can be formed into highly complex parts, making them ideal for the investment casting process. Constant cost fluctuations can make these materials very price sensitive, making waste very costly, especially when considering CNC machining and/or forging as a manufacturing process to produce your production part. Pure copper is not usually cast.
Investment (lost wax) casting is a method of precision casting complex near-net-shape details using replication of wax patterns. Investment casting or lost wax is a metal forming process that typically uses a wax pattern surrounded by a ceramic shell to make a ceramic mold. When the shell dries, the wax is melted away, leaving only the mold. Then the casting component is formed by pouring molten metal into the ceramic mold.
The process is suitable for repeatable production of net shape components from a variety of different metals and high performance alloys. Although generally used for small castings, this process has been used to produce complete aircraft door frames, with steel castings of up to 500 kgs and aluminium castings of up to 50 kgs. Compared to other casting processes such as die casting or sand casting, it can be an expensive process. However, the components that can be produced using investment casting can incorporate intricate contours, and in most cases the components are cast near net shape, so require little or no rework once cast.
Silica sol casting process is the main steel investment casting process of RMC investment casting foundry. We have been developing new technology of adhesive material to achieve much more economical and effective adhesive material to build the slurry shell. It is a overwhelming trend that Silica sol casting process replaces the rough inferior water glass process, especially for stainless steel casting and alloy steel casting. Besides the innovated molding material, the silica sol casting process has also being innovated to much steadier and less heat expanding.
▶ Capabilities of Investment Casting (Lost Wax Casting) Foundry
Max Size: 1,000 mm × 800 mm × 500 mm
Weight Range: 0.5 kg - 100 kg
Annual Capacity: 2,000 tons
Bond Materials for Shell Building: Silica Sol, Water Glass and their mixtures.
Casting and Machining Tolerances: On Request or As Per Standard
▶ Metals for Investment Casting, Lost Wax Casting Process:
Carbon Steel: AISI 1020 - AISI 1060,
Alloy Steel: ZG20SiMn, ZG30SiMn, ZG30CrMo, ZG35CrMo, ZG35SiMn, ZG35CrMnSi, ZG40Mn, ZG40Cr, ZG42Cr, ZG42CrMo...etc on request.
Stainless Steel: AISI 304, AISI 304L, AISI 316, AISI 316L, 1.4404, 1.4301
Duplex Stainless Steel, Super Duplex Stainless Steel
Nickel Based Alloy, Cobalt Based Alloy
Brass, Red Copper, Bronze or other Copper-based metals
Other Materials as per your unique requirements or according to ASTM, SAE, AISI, ACI, DIN, EN, ISO, and GB standards
▶ Main Production Procedure
Patterns & Tooling Design → Metal Die Making → Wax Injection → Slurry Assembly → Shell Building → De-Waxing → Chemical Composition Analysis → Melting & Pouring → Cleaning, Grinding & Shot Blasting → Post Processing or Packing for Shipment
▶ Inspecting of Lost Wax Castings
Spectrographic and manual quantitative analysis
Metallographic analysis
Brinell, Rockwell and Vickers hardness inspection
Mechanical property analysis
Low and normal temperature impact testing
Cleanliness inspection
UT, MT and RT inspection
▶ Post-Casting Process
Deburring & Cleaning
Shot Blasting / Sand Peening
Heat Treatment: Normalization, Quench, Tempering, Carburization, Nitriding
Surface Treatment: Passivation, Anodizing, Electroplating, Hot Zinc Plating, Zinc Plating, Nickel Plating, Polishing, Electro-Polishing, Painting, GeoMet, Zintec.
CNC Machining: Turning, Milling, Lathing, Drilling, Honing, Grinding.
▶ Why You Choose RMC for Custom Lost Wax Casting Parts?
Full solution from one single supplier ranging customized pattern design to finished castings and secondary process including CNC machining, heat treatment and surface treatment.
Costdown proposals from our professional engineers based on your unique requirement.
Short leadtime for prototype, trial casting and any possible technical improvement.
Bonded Materials: Silica Col, Water Glass and their mixtures.
Manufacturing flexibility for small orders to mass orders.
Strong outsourcing manufacturing capabilities.
▶ General Commerial Terms
Main workflow: Inquiry & Quotation → Confirming Details / Cost Reduction Proposals → Tooling Development → Trial Casting → Samples Approval → Trial Order → Mass Production → Continuous Order Proceeding
Leadtime: Estimatedly 15-25 days for tooling development and estimatedly 20 days for mass production.
Payment Terms: To be negotiated.
Payment methods: T/T, L/C, West Union, Paypal.
Hot Tags: brass casting, brass casting parts, bronze casting
