High Si-Mo ductile iron,fully anneal before machine. There are 6 flange surfaces, the total length is about 26in. The overall size of the manifold is too large, and the shape is linear, which is not good for casting, it is prone to bending deformation, resulting in scrap.
Machining
The machining is mainly affected by the consistency of the castings. The consistency is not good, the datum of the machining is not easy to determine, and the machining is prone to deviation. The main performance is that some flange inner ports leak raw material.
Machining
To prevent deformation make by clamping, this needs to be ensured by tooling and the operator to minimize the amount of deformation and ensure the qualified rate of the product.
Machining
The size of itself is too large, and there are high requirements for the machining and clamping.