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VIBRATION FINISHING SERVICES SERVING THE UK
R D Castings Ltd offers high-quality vibration finishing services in the UK. Contact us to discuss your requirements
VIBRATION FINISHING OF HIGH PRESSURE DIE CAST (HPDC) COMPONENTS
Vibration finishing plays an essential role in the post-processing of aluminium high pressure die castings (HPDC), delivering precise, consistent surface improvement on complex parts produced at high volumes. Given the high dimensional accuracy and tight tolerances of HPDC parts, the finishing process must be carefully controlled to maintain integrity while achieving cosmetic and functional surface quality.
WHY VIBRATION FINISHING FOR HPDC?
High pressure die casting is known for producing components with:
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Thin walls and intricate geometries
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Excellent dimensional repeatability
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Minimal post-machining requirements
However, HPDC parts often require secondary finishing to:
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Remove burrs, flash, and gate residues
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Smooth micro-roughness from tool marks or ejector pin impressions
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Prepare surfaces for coatings
PROCESS CHARACTERISTICS:
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Media Selection: Plastic or resin-bonded media is ideal to avoid surface damage on aluminium. For heavier deburring, fine ceramic media may be used with caution.
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Cycle Times: Typically 30–90 minutes, depending on part complexity and desired Ra values. Delicate features may require shorter, multi-stage processes.
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Compound Use: pH-neutral or slightly alkaline compounds prevent oxidation and staining while aiding in lubrication and media flow. Rust inhibitors may also be added to protect ferrous inserts.
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Equipment Configuration: Bowl vibrators with internal separation or continuous flow-through systems are commonly used in high-volume die casting plants.
COMMON APPLICATIONS:
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Automotive: Transmission cases, engine brackets, structural components
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Electronics: Housings with EMI shielding
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Consumer goods: Appliance frames and mounts
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Industrial: Pneumatic tools, compressor housings
BENEFITS FOR HPDC ALUMINIUM:
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Edge Conditioning: Smooths parting lines, ejector pin marks, and sharp edges without affecting dimensional tolerance.
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Uniform Surface Finish: Ideal for decorative coatings or when a consistent matte texture is required.
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Cost Efficiency: Enables batch processing, reducing labour and cycle time compared to manual deburring or individual machining.
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Scalability: Easily integrated into automated finishing cells for consistent output in mass production environments.
