Injection Molding
Tooling and molding for your repeat plastic parts.
Thermal Technologies
for Your Heat Sinks & Cold Plates
Choose your air- or liquid-cooling component around the heat load, available space and assembly interfaces. Review your drawing, joining route and acceptance plan before you order.
Heat Load & Conditions
Define your operating point
Interfaces & Fit
Match mounting and space
Material & Joining
Review the wetted path
Sample & Records
Agree checks before release
Explore 8 Thermal Technology Options
Start your heat sink and cold plate manufacturing review with the component. Process availability and scope are confirmed for your drawing.
HEAT SINKS
Custom Heat Sinks
Match your footprint, mounting and airflow.
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Review your custom heat sinks around base contact, available fin height and installation clearance. A machined route can suit geometry that differs from a constant extrusion profile. Share the heat map and fan curve before choosing fin spacing.
Review this cooling route
Skived Fin Heat Sinks
Review fin spacing and integral-base geometry.
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For your skived fin heat sinks, review thin-fin geometry, base thickness and the air or liquid path. Dense fins add surface area, but only usable flow through the passages can carry heat away. Material and process availability need drawing review.
Review this cooling route
Extruded Heat Sinks
Plan the profile, cut length and machining.
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For your extruded heat sinks, confirm the constant cross-section, fin-to-gap proportions, cut length and any secondary drilling or milling. An aluminum extrusion heat sink still needs contact-face and mounting requirements on the drawing.
Review this cooling route
Bonded Fin Heat Sinks
Review the fin-to-base joint and assembly.
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Review your bonded fin heat sinks for individual fin alignment, base grooves and joint construction. The fin attachment method affects the inspection plan; do not assume an adhesive-bonded joint and a brazed joint have the same limits.
Review this cooling routeLIQUID COOLING
Liquid Cold Plates
Define channels, ports and contact faces.
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For your custom liquid cold plates, specify the heat source locations, coolant, inlet temperature, flow range and allowed pressure drop. Liquid cold plate manufacturing also needs a defined cover joint, sealing surfaces and leak-test acceptance.
Review this cooling route
Vacuum Brazed Cold Plates
Review enclosed passages and joint access.
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Review your vacuum brazed cold plates around the alloy combination, internal passage support and braze-joint design. Confirm cleaning, inspection access and the agreed leak-test method before the sample build; joint qualification is project specific.
Review this cooling route
FSW Cold Plates
Confirm the cover joint and tool access.
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For your FSW cold plates, review compatible alloys, cover thickness, joint support and friction stir tool access. Keep ports and mounting features clear of the tool path. Define final flatness and the agreed post-joining checks.
Review this cooling route
Cooling Manifolds
Match flow paths, ports and sealing faces.
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For your custom cooling manifolds, confirm branch flow needs, thread standards, O-ring seats and fitting access. Supply the mating connector specification: a nominal port diameter alone does not define a seal or an interchangeable connection.
Review this cooling routeMatch the Cooling Route to Your Assembly
Use your operating conditions to compare manufacturable components; system thermal validation is a separate scope.
Review Your Fins, Base and Air Path
Your inputHeat map, ambient temperature and available airflow.
Your interfacesBase contact, fasteners and enclosure clearance.
Your acceptanceProfile, contact flatness and mounting dimensions.
Define Your Material and Joint
Review aluminum or copper, the fin route and any fin-to-base joint; confirm process availability for your geometry.
Compare aluminum and copperAgree Your Acceptance Evidence
Thermal acceptance needs the specified heat input, airflow, ambient conditions and interface assembly. Dimensional checks alone do not establish cooling performance.
See sample and release records
Review Your Channels, Ports and Mounting Together
Your inputHeat map, coolant and inlet temperature.
Your interfacesFlow range, pressure budget and mating connector.
Your acceptanceDimensions and agreed pressure / leak conditions.
Define Your Material and Joint
Review coolant compatibility with every wetted metal, the cover joint and cleanable passage geometry.
Compare aluminum and copperAgree Your Acceptance Evidence
Agree test fluid, pressure, hold time, leakage limit and report scope. Thermal tests need the stated flow, inlet temperature and heat input.
See sample and release records
Review Your Branches and Connection Access
Your inputBranch count, flow targets and coolant circuit.
Your interfacesThreads, seals, fitting envelope and mounting.
Your acceptancePort gauges, cleanliness and agreed leak records.
Define Your Material and Joint
Match all wetted metals, port finishes and seals to the coolant; specify any dissimilar-metal isolation.
Compare aluminum and copperAgree Your Acceptance Evidence
Agree leak / pressure checks, branch identification and cleanliness evidence. Flow distribution is verified only when included in the agreed test scope.
See sample and release records
Air or Liquid? Define the Conditions First
Give your reviewer the operating point, not only the outside dimensions.
For Your Air-Cooled Part
- Heat load & ambient temperature
- Available airflow & fin direction
- Space, mounting & contact face
Airflow at the installed part matters more than an unrestricted fan rating.
For Your Liquid-Cooled Part
- Coolant & inlet temperature
- Flow rate & pressure-drop allowance
- Operating pressure & sealing interfaces
Include the complete wetted path when you review materials and coolant.
Compare Materials Before You Lock the Design
For your cold plate, conductivity is one input. Weight, wetted-path compatibility and the joining route also affect your choice.
Copper or aluminum for your component?
C110 copper offers higher bulk conductivity. 6061-T6 aluminum offers lower density. Confirm the grade, temper and full coolant circuit before specifying either material.
Typical thermal conductivity
W/(m·K), near room temperature · zero baseline
1676061-T6 aluminum
≈390C110 copper
Typical material data, not an LK MFG test report or a prediction of cooling-system performance. Thermal resistance also depends on geometry, interfaces, coolant flow and pressure drop.
Sources & comparison conditions
6061-T6 / T6511: 167 W/(m·K) at 25°C, Hydro 2019/01 alloy data. C110: 390 W/(m·K), Olin Brass / Wieland typical physical-property data. Values describe different specified grades and are for initial comparison, not a guaranteed specification.
Hydro 6061 data sheet Wieland C110 data sheetResolve 6 Risks Before Production
Turn drawing assumptions into agreed checks before you approve the sample.
Define the Surface That Transfers Your Heat
01Contact areaIdentify the real device footprint and any keep-outs.
02DatumsReference flatness and mounting faces to agreed datums.
03Interface stackInclude TIM thickness, clamping and isolation layers.
04InspectionAgree the method and conditions for critical surfaces.
Check the Passage Before You Add More Surface Area
01Air pathReview fin spacing against installed airflow.
02Liquid pathCheck bends, narrow sections and pressure loss.
03Tool accessKeep tool reach, wall support and cleaning in view.
04AcceptanceDefine dimensions that protect usable flow paths.
Review Every Metal in Your Coolant Circuit
01Wetted metalsList plate, tube, manifold and fitting materials.
02CoolantSpecify the formulation and supplier guidance.
03IsolationReview dissimilar-metal and electrical interfaces.
04MaintenanceInclude coolant condition and service requirements.
Agree Your Joint and Leak-Test Requirements
01Test mediumSpecify the test fluid for your application.
02Pressure & durationAgree the test method and hold time.
03Acceptance limitDefine allowable leakage for your design.
04Sampling & recordsDefine sampling and the required report.
Specify the Connection, Not Only the Hole Size
01Thread standardIdentify the exact thread designation and gauge.
02Seal typeDefine the O-ring face, cone or other sealing form.
03Fitting accessAllow wrench clearance and installation space.
04Port positionCheck mating hose routes and assembly datums.
Keep Your Contact Face and Coolant Path Usable
01Contact surfaceDefine where coating is required or excluded.
02Burr controlReview channel intersections and threaded exits.
03CleaningAgree the cleaning and protection requirements.
04PackagingProtect seal faces and keep passages covered.
5 Checkpoints from Drawing to Repeat Supply
Make each approval specific enough to carry into the next build.
- 01
Drawing & Inputs
Share the heat map, drawing and operating conditions.
- 02
DFM & Process
Review machining, joining and inspection scope.
- 03
Sample Build
Check the parts and interfaces on a sample.
- 04
Agreed Checks
Review dimensions and specified test records.
- 05
Production Release
Confirm the accepted revision for repeat supply.
Approve the Evidence, Not Just the Appearance
Define the records your team needs for acceptance; dimensional inspection alone does not verify thermal performance.
Confirm the Material Before Machining
Material identity and the agreed supporting records
Drawing revision, stock condition and any specified temper
Your required traceability scope and retained evidence
Approve Your Interfaces on the First Sample
Contact faces, ports and mounting dimensions
Specified leak / pressure checks and acceptance records
Your assembly feedback before repeat production
Protect the Features That Can Change During Manufacture
Critical dimensions after relevant machining or joining steps
Process checkpoints agreed for your part and order
Revision control when an approved feature changes
Match Your Shipment to the Accepted Revision
Final inspection and agreed test report scope
Quantity, part identification and protection of sealing faces
Documents and packaging required for your receiving team
6 Inputs for Your Thermal Quote
Send the information that lets your reviewer resolve fit, flow and acceptance questions.
- 01CAD + controlled drawing
- 02Heat load + temperature target
- 03Airflow or coolant conditions
- 04Ports, mounting + critical fits
- 05Material, finish + test scope
- 06Sample quantity + repeat demand
Answers Before You Specify
Do I need a heat sink or a cold plate?
Compare the heat input, allowed component temperature, ambient conditions and installed airflow. Review liquid cooling when your air path or space cannot meet the application target. The decision needs your operating data; a component photograph cannot establish suitability.
Is copper always better than aluminum?
Copper can offer higher bulk thermal conductivity, while aluminum can reduce component mass. Geometry, contact resistance, airflow or coolant conditions and your assembly all affect the result. Use the material chart as a property comparison, not a cooling-performance ranking.
When should brazing or FSW be reviewed?
Review the joint during drawing development. Alloy compatibility, cover thickness, tool access, internal geometry and the required seal determine which routes need further evaluation. Confirm the actual process and test scope before production.
Which leak and pressure tests should I specify?
Define the test medium, test pressure, hold time, leakage acceptance and sampling plan with your engineering team. Include the required record. A universal test pressure or a visual inspection is not a substitute for your application acceptance limits.
Can aluminum and copper share my coolant loop?
Review every wetted metal and the coolant supplier’s compatibility guidance. Dissimilar metals in a conductive coolant can create galvanic corrosion risk. Dry contact between aluminum and copper is a different interface from sharing a liquid circuit.
What is included in my manufacturing quote?
Confirm drawing revision, material, machining, joining, finishing, inspection and report scope, quantity, packaging and delivery terms. Thermal design, simulation or system validation is included only when expressly agreed for your project.
All component images are illustrative concepts. Manufacturing routes, thermal validation and acceptance scope are confirmed for your project.
