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Custom Stainless Steel Lost Wax Casted Housing for Automotive Industry
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Custom Stainless Steel Lost Wax Casted Housing for Automotive Industry

Our custom stainless steel lost wax casted housing offers precision-engineered, high-quality enclosures designed for demanding applications. Utilizing the lost wax casting (investment casting) process, we deliver complex, near-net-shape components with exceptional dimensional accuracy, smooth surface finishes, and superior mechanical properties.
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Introduction


This is a housing made by lost wax casting and usd in automotive industry. Lost - wax casting, also known as investment casting, offers several advantages, it allows for high - precision and complex shapes to be produced with excellent dimensional accuracy. Lost - wax casting is suitable for producing small to medium-sized batches cost - effectively, making it a flexible option for various production needs. In the automotive industry, lost - wax casting of stainless steel is widely used. It is employed to produce engine components such as cylinder heads, valves, and turbocharger housings.



Product manufacturing process


This design was from our client and the material is stainless steel. Stainless steel stands out for its exceptional combination of corrosion resistance, mechanical durability, and functional versatility, making it indispensable across industries.


1. Make the mold. The process begins with injecting wax into metal molds to form patterns, which are then assembled into trees with wax gating systems. So metal molds for wax model are critical tools in investment casting, designed to mass-produce high-precision wax patterns for complex metal castings. The mold is as below pictures:

lost wax mold inside

lost wax mold assemble


2. Make the casting in lost wax casting process. Shells are built by dipping the trees into silica sol slurries, followed by successive layers of sand; after drying, wax is removed and the shells are baked at 900-1200°C to enhance strength. Stainless steel is melted in vacuum induction furnaces and poured into the preheated shells. Post-cooling, shells are removed by vibration, and castings undergo heat treatment. Then CNC milling the two flanges, find in following pictures.

milled another flange 

tap M18 thread


3. Mill the boss surface flat to ensure it's level and smooth. Then, tap an M18 thread into it. Make sure to use the right drill bit before tapping to get the correct hole size, and go slowly to avoid any damage or mistakes.

tap M18 thread


4. Finish all the CNC machining process and inspection, pack it into box.

Make sure each part goes through milling, taping. After that, carry out a thorough inspection, check dimensions with calipers, look for surface defects, and verify it meets the drawing specs. Then put the part in protective bag, place it in box, seal it up, and stick on the shipping label.

mass-production machining finishedpacking in boxes



Ningbo Joyo Metal Parts Co.,Ltd is specialized in customing metal parts for over 14 years,  having extensive experience in integrating various metal processing proesses. From automotive, mining to the furniture industry, we have a complete and stable supply chain in local.


With so many years' hard work and development, Ningbo Joyo Metal has built a competitive supply chain in the market to serve the distinguished customers all over the world.

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