Mechanical processing details, forging and casting

During the process of precision machining, this material exhibits superior mechanical properties compared to cast iron; however, its casting performance is inferior to that of cast iron, and its melting point is higher than that of other materials. There are numerous issues that need careful attention during machining, primarily because the molten steel has relatively poor fluidity. To prevent insufficient filling or cold shuts during precision machining, the wall thickness of the workpiece must not be less than 8 mm. The structure of the gating system for this material is relatively simple. During use, the cross-sectional dimensions of the equipment should be larger than those used for cast iron, allowing for the adoption of either hot-box molds or dry-box molds during machining.

The temperature ensures that the molten metal exhibits excellent fluidity during the transfer process. The selection of the precise machining temperature should be based on several factors, including the transfer distance, the cooling conditions during the transfer process, the alloy type, the product specifications, and the flow rate. The precise machining temperature is typically 50 to 110°C higher than the alloy’s liquidus temperature. By setting the appropriate processing temperature, we can ensure that the molten metal maintains good fluidity throughout the transfer process. When selecting the casting temperature for the equipment, it is essential to take into account factors such as the transfer distance and the cooling conditions during the transfer process.