Discussion and application of the improvement of the dimensional accuracy of integral large-format cylinder head castings
Along with the continuous optimization and upgrading of the engine,the cylinder head,as one of the main parts of the engine,integrates more and more parts and has a more complex structure,and the requirements for the dimensional accuracy and dimensional consistency of the cylinder head are get-ting higher and higher.Based on the design boundary of casting dimensional consistency,the improve-ment cases of two integral large-size cylinder head dimensional accuracy enhancement of our company are introduced,and several major factors affecting the dimensional accuracy of cylinder head casting in casting process tooling design and actual production are summarized as well as the improvement scheme,which can be popularized and applied in other series of products.
Casting sizeSand castingIntegral large format cylinder head