Die Casting for Metal Package Components
Die casting metal package components requires precise control of material flow, thermal conditions, and dimensional stability. Modern packaging lines operate at speeds exceeding 3,000 units per hour, where variations of even 0.1mm in wall thickness or 2°C in die temperature can lead to significant defect rates in sealing surfaces and threading features.
The fundamental challenge lies in balancing rapid production cycles with the need for consistent material properties and precise dimensional control across complex geometries.
This page brings together solutions from recent research—including preheated aluminum alloy processing techniques, electromagnetic field-assisted joining methods, and specialized die designs for curled openings and threaded sections. These and other approaches focus on achieving reliable, high-volume production while maintaining critical quality parameters for modern packaging applications.
1. Deep Drawn Aluminum Can with Gradual Tapered Transition Between Flange and Body
UNIVERSAL CAN CORP, 2018
DI aluminum can with a gradual tapered section between the flange and body to prevent molding defects during the deep draw process when reducing the body weight. The tapered section has a length of 25-40mm and gradually increases in inner diameter from the flange to the body. This gentle incline prevents the punch from getting caught during molding and allows uniform drawing of thinner walls without defects like buckling or chipping.
2. Method for Manufacturing Chip Package Heat Sink with Separate Conductive Block and Insulated Bracket Formation
ANGKUO INDUSTRIAL CO LTD, 2012
Method for manufacturing a chip package heat sink with improved performance and cost savings by separately forming a conductive block and insulated bracket from different metals, then joining them. The method involves sequentially punching, treating, and blanking metal sheets to form a bracket with an insulating center hole, and a conductive block with low resistance and good heat dissipation. The blocks are then embedded in the bracket holes to complete the heat sink with combined properties like conductivity and insulation. This allows using cheaper aluminum for the insulated bracket and copper for the conductive blocks. It also enables continuous batch processing and joining to reduce costs and improve quality compared to combining different materials in one step.
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