Shrinkage, hot tearing, gas porosity, inclusions and surface defects: mechanism, diagnosis and correction.
IntroductionPitting defects, often observed on the surface of investment castings, have long been a topic of debate among researchers and practitioners.
In an investment casting communication group, a member posted the photo shown in Figure 1 with the question: “Experts, what causes these widespread
Is this defect caused by inadequate local cleaning of the wax pattern, resulting in poor adhesion between the shell’s face coat and the wax, leading to
In today’s discussion, we will examine a typical shrinkage defect in a hardware casting product to analyze how casting structure and gating system
How to Fix Sinking Defects in Large Flat Investment Castings: Shell-Building Process & Delamination AnalysisThis is a question raised by a friend in a
?This question was raised by a colleague in an investment casting discussion group.
(Part 2)What exactly is the defect on this product – sand burning or cucumber spines? In reality, the causes of these two defects are quite different.
Analysis of Causes for Shrinkage in Castings and Improvement RecommendationsThis is a message sent by a friend.
Recently, a foundry engineer raised a typical technical issue in an industry forum: casting fonts on product surfaces were eroded during pouring,
Li Ming was a senior engineer at Xin You Yuan Precision Casting Company, specializing in precision casting for high-precision metal parts used in