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A clearance hole must be provided for attachments that are made at sections with thin walls in order to provide the bolt with a section through which die cast parts can move through the structure during installation. With the assistance of a nut, the bolt is then tightened and secured into place on the flange of the flange. It is important to consider the following factors when analyzing the interaction between cast-aluminum tapped holes and studs or bolts: Section 3 contains a thorough discussion of the way loads are distribut... more

While porosity refers to the presence of holes and voids that can be discovered within an object such as a casting, more specific terms may be used to refer to voids that have a specific shape, are located in specific locations, or occur at specific frequencies. Because each defect and cause listed above has the potential to have an impact on the overall effectiveness of your product or part, it is important to consider both the severity of the defect or cause and the extent to which it has spread throughout the product or part. I... more