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China Aluminum Casting CNC Machining Heatsink Prototyping - Quality Products from Leading Suppliers and Factory
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Aluminum Die Casting CNC Machining Heat Sink
Our heat sinks focus on mid-to-high-end customers in Asia, North America, Europe, Israel, Japan, South Korea, Malaysia, Singapore and other regions, and are used in communication, machinery, automobiles, wind power generation, engineering machinery, air compressors, railway locomotives, household appliances, etc.
Features
CNC machined aluminum die-cast radiator
Our heat sinks are widely used in communications, machinery, automobiles, wind power generation, engineering machinery, air compressors, railway locomotives, household appliances and other fields. Our target customers include mid-to-high-end customers in Asia, North America, Europe, Israel, Japan, South Korea, Malaysia, Singapore and other regions.
Feature-rich Highlights:
a. Light weight
Our radiators are made of innovative aluminum alloy, which is much lighter than traditional radiators.
b. Strong corrosion resistance
Our radiators are made of aluminum and zinc alloy, ensuring a long service life even under wear and tear conditions.
c. High temperature resistance
We pay great attention when designing the radiator so that it can withstand high temperatures without losing functionality.
d. Optimum heat dissipation
Our radiator’s superior heat dissipation capability is its main selling point.
Process
Step 1
Aluminum die casting
Equipment & Materials
One 300-ton die-casting aluminum machine. Contents: ADC12
Process characteristics
- a. The furnace temperature is 670°±20°, and the material handle is 20±2 mm.
- b. It is impossible to utilize secondary materials.
- c. Material composition must be tested to ensure it is suitable for production.
- d. After die casting, the first piece must be confirmed.
Note:
- a. It is necessary to verify the filling quality of the surface. It’s not the bulge, it’s not the cold insulation, it’s not the lack of material in the pillars.
- b. Pay attention to the surface to prevent poor ejector pin crown, mold pulling or mold sticking.
- c. For non-machined surfaces and machined surfaces, the ejector pins are concave by 0-0.2 mm. The convexity of the ejector pin must be 0-0.2 mm.
Step 2
Take out the nozzle (saw nozzle) and pull out the slag bag
Equipment
Hydraulic Press
Note:
- a. Pay attention to the surface and don't damage it or use insufficient material.
- b. Manage size and appearance.
Step 3
IPQC inspection
Testing Tools
Calipers, projection, 3D, visual inspection of appearance are examples of testing tools.
Precautions:
Check dimensions against drawings and use accurate measuring equipment.
Step 4
Shape Product front shape
Equipment
Hydraulic presses, forming tools and blade rulers
Precautions:
Within 0.25 mm from the front plane of the product.
Step 5
IPQC inspection
Assessment Method
Appearance visual assessment
Step 6
Shape the back of the product
Tools
Forming tools, blade ruler
Note:
Within 0.15mm from the large surface of the product
Step 7
Tapping and drilling
Instructions & Equipment
Use the following equipment to drill D2.05 hole depth 6 and tap M2.5 hole depth 5.5: height gauge, bottom hole pass gauge, M2.5 pass gauge
Precautions:
Precautions include avoiding contact with scratches, flange burrs, missed taps, broken taps and residual metal fragments.
Step 8
IPQC INSPECTION Visual inspection
Process
Visual inspection of the product status.
Step 9
Chemical conversion film for cleaning and leather coating
Precautions:
No obvious color, unclean, no contact, no scratching
Step 10
100% visual inspection (appearance) before powder coating
Details
Thoroughly inspect the goods and packaging
Consumables
dividers, containers, bubble wrap and desiccant
Note:
- a. Appearance needs to be checked based on samples. There should be no dents, scratches or other blemishes on the surface and the glue application should be smooth and flawless!
- b. The pass and stop inspection requirements of the tooth profile must be met.
- c. After the product is inserted into the knife card, the top layer is covered with a flat cardboard and wrapped.
Step 11
FQC exam
Testing Instruments
Calipers, projectors, pin gauges, tooth gauges, visual and packaging inspection are all examples of testing instruments.
Note:
If the measuring device is still within its calibration window.
Step 12
Shipping notes
Note:
- a. Confirm that the amount matches the order.
- b. Label and stamp the outer box.
- c. Send reports on shipments.
Step 13
Qualified transportation inspection
Testing Instruments
Calipers, projectors, pin gauges, tooth gauges, visual and packaging inspection are all examples of testing instruments.
Precautions:
Verify that the measurement device is still within its calibration window. Whether it meets both customer and SIP requirements.
Step 14
OQC shipment inspection
Testing Instruments
Testing instruments include calipers, projectors, pin gauges, tooth gauges, outer packaging inspection, etc.
Note:
If the measuring device is still within its calibration window. Whether it meets both customer and SIP requirements.
Frequently Asked Questions (FAQ)
What markets and applications are these heat sinks designed for?
Our heat sinks target mid-to-high-end customers in Asia, North America, Europe, Israel, Japan, South Korea, Malaysia, and Singapore. They are widely applied in communication systems, automobiles, machinery, wind power generation, engineering machinery, air compressors, railway locomotives, and household appliances.
What material is used for the aluminum die casting process?
We utilize high-grade ADC12 aluminum alloy for our die casting. To ensure maximum component integrity and performance, secondary materials are not used, and the material composition is rigorously tested before production.
What are the main performance advantages of your radiators?
Our radiators feature a lightweight design due to innovative aluminum alloys, strong corrosion resistance via aluminum-zinc alloy composition, high temperature tolerance without degradation, and optimum heat dissipation performance.
What quality control inspections are carried out during production?
We implement extensive inspection stages including initial IPQC dimensional and visual checks, FQC exams, and final OQC shipment inspections. Testing instruments include calipers, projection, 3D systems, pin gauges, and tooth gauges to guarantee all customer and SIP requirements are met.
How do you handle drilling and tapping precision?
We utilize specialized height gauges, bottom hole pass gauges, and M2.5 pass gauges to drill D2.05 holes (depth 6) and tap M2.5 holes (depth 5.5). Precautions are strictly taken to avoid scratches, flange burrs, missed or broken taps, and residual metal fragments.
What packaging procedures are followed before shipping?
Before powder coating and shipping, a 100% visual assessment is completed. Products are securely packed using dividers, containers, bubble wrap, and desiccant to prevent surface damage, with a flat cardboard layer covering the top before final wrapping.