Electroplating is a critical electrochemical process used to deposit a thin layer of metal onto a conductive substrate. At Clarwe, we provide industrial-grade electroplating services designed to enhance corrosion resistance, electrical conductivity, and surface hardness for CNC machined parts and sheet metal components.
H2: Technical Plating Capabilities & Material Compatibility
Selecting the correct plating chemistry is dependent on the base material (substrate) and the intended environmental exposure of the final component.
H3: Common Plating Metals & Performance Profiles
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Nickel Plating: Offers excellent wear resistance and corrosion protection. Ideal for salvage of undersized parts.
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Zinc Plating: The industry standard for cost-effective atmospheric corrosion resistance (Galvanic protection).
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Chrome Plating: High-hardness finishing for low-friction applications and industrial tools.
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Tin Plating: Preferred for electronics and food-grade applications due to its non-toxicity and solderability.
H3: Supported Substrates
We provide high-adhesion plating for a wide range of industrial alloys:
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Aluminum Alloys: (6061, 7075, 5052)
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Steels: Low-carbon, High-carbon, and Alloy Steels.
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Stainless Steel: (300 and 400 series) via specialized activation strikes.
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Copper & Brass: Optimized for electrical contact applications.
H2: Design for Manufacturing (DFM) Guidelines for Electroplating
To ensure a uniform finish and prevent dimensional non-conformance, engineers should consider the following variables during the design phase:
H3: Coating Thickness and Dimensional Tolerances
Electroplating is an additive process. Typical thickness ranges from 5μm to 50μm ($0.0002”$ to $0.002”$).
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Internal Threads: We recommend oversizing internal threads to account for plating buildup.
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Precision Bores: Critical diameters may require post-plating honing or grinding if tolerances are tighter than $\pm 5\mu m$.
H3: Geometry Constraints and "Throwing Power"
The "Throwing Power" of a plating bath determines how evenly the metal deposits into recessed areas.
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Blind Holes: May require specialized racking or internal anodes to ensure coverage.
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Sharp Edges: Current density concentrates at sharp corners, leading to "edge buildup." Adding small radii ($0.5mm+$) ensures a more uniform deposit.
H2: Quality Assurance and Industry Standards
Our plating processes are governed by strict adherence to international engineering standards to ensure repeatability and performance in mission-critical environments.
H3: ASTM and MIL-SPEC Compliance
We offer plating to meet specific industry standards, including:
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ASTM B633: Electrodeposited Coatings of Zinc on Iron and Steel.
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AMS 2404: Electroless Nickel Plating.
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MIL-G-45204: Gold Plating, Electrodeposited.
H3: Inspection and Verification Protocols
Every batch undergoes rigorous QC testing at our ISO 9001:2015 and AS9100D certified facilities:
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XRF Testing: Non-destructive X-ray Fluorescence for precise thickness verification.
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Adhesion Testing: Heat-quench and bend testing to ensure zero delamination.
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Salt Spray Testing: Verification of corrosion resistance per ASTM B117.