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Lost-wax precision casting has the characteristics and advantages that the traditional casting, forging, and mechanical cutting molding methods do not have. It is suitable for any material and has the ability to produce more flexible mass production. Therefore, the application of lost-wax casting covers a wide range, from heaven to earth. Aircraft, vehicles on the ground, ships at sea, various industrial machinery and equipment and leisure art supplies can be produced.

The use of lost-wax precision casting is that it can manufacture thin-walled parts, complex-shaped parts, fine-patterned parts, complicated parts, difficult-to-cut parts, net-shaped parts, expensive parts, and several parts. Dimensional accuracy and surface gloss are good. Especially for odd-shaped, hollow and complex parts that are difficult to manufacture by traditional sand casting, forging or cutting methods, and although they can be manufactured by forging, cutting, etc. It will consume a lot of metal materials, resulting in parts with high manufacturing cost. Switching to lost wax casting can achieve the purpose of short construction period and low cost.

For parts with fine patterns, fine grooves and curved fine holes, it can also save the time and cost of electrical discharge machining and laser engraving. In addition, the use of lost wax investment casting method is most suitable for the production of net shape (Net Shape) parts, which can greatly reduce the weight of parts, and can also cast several parts into one, reduce weight, improve mechanical properties and dimensional accuracy, and reduce processing hours and costs.

The maximum limit length of local production of dewaxed precision castings is 700mm, and the easy-to-make length is less than 200mm. The maximum weight of castings is about 100 kg, which is generally used as castings under 10 kg, and castings over 30 kg are rare. Casting size tolerance is about 20mm±0.13mm, 100mm±0.30mm, 200mm ±0.43mm, and the dimensional accuracy of small parts is not easy to reach within ±0.10mm. The angle tolerance is ±0.5~±2.0 degrees, and the thinnest wall thickness of the casting can be 0.5mm. The surface roughness of the casting is about Rmax 4S~12S.

Another feature of dewaxed precision castings is that the material is lively and has almost no restrictions, such as cast iron, cast steel, alloy steel, stainless steel, tool steel, aluminum alloy, magnesium alloy, titanium alloy, copper alloy, beryllium copper alloy, Super alloys, cobalt-based and nickel-based heat-resistant alloys, etc., any alloy is suitable. Zhang Yongyuan said that any alloy can be cast by dewaxing. If a part is produced and its alloy is difficult to cut or impossible to cut, dewaxing precision casting is generally the best production method for the part. And some alloys are more suitable for the production of lost-wax precision casting, which will be more efficient and perfect. For example, complex composite parts can be finely cast with holes, grooves, bevels, serrations, notches, thin sections, knife edges and other shapes. The precision is good, and more than 90% of them can be used without further processing. Therefore, those machine tools that have been refined such as milling, turning, and boring are not required. The flexibility of product development and design is excellent.

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