Category Archives: heat sink-E

Fig. 6. Micro-morphologies of die cast AZ91D specimens after immersion in 5 wt

Effect of Aging on Yield Stress and Corrosion Resistance of Die Cast Magnesium Alloy

This page summarizes the research paper “Effect of Aging on Yield Stress and Corrosion Resistance of Die Cast Magnesium Alloy”. This study investigates how aging at 160°C affects the corrosion behavior of die cast magnesium alloy AZ91D, linking these changes to alterations in the material’s microstructure and composition. 1. Overview: 2. Research Background: 3. Research

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Figure 8. Schematic diagram of cooling system in LED headlamp.

Application Specific LED Packaging for Automotive Forward-lighting Application and Design of Whole Lamp Module

1. Overview: 2. Research Background: The automotive industry is increasingly adopting LEDs for headlights, driven by advantages such as reliability, energy efficiency, compactness, durability, environmental friendliness, and longevity [1]. However, conventional LED packaging differs significantly from halogen or HID lamps in optical and thermal characteristics, posing challenges for direct application in forward-lighting. A study highlights

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Fig. 1. HPDC process overview.

Analytical Cost Estimation Model in High Pressure Die Casting

This document provides a detailed summary of the research paper “Analytical cost estimation model in High Pressure Die Casting” published in Procedia Manufacturing in 2017. 1. Overview: 2. Research Background: 3. Research Purpose and Research Questions: 4. Research Methodology: 5. Main Research Results: 6. Conclusion and Discussion: 7. Future Follow-up Research: 8. References: 9. Copyright:

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Figure 5 Reflector models

OPTIMAL PLATE-FIN DESIGN FOR IMPROVING HEAT DISSIPATION PERFORMANCE OF AUTOMOBILE LAMP REFLECTORS

1. Overview: 2. Research Background: Automobile headlamp reflectors experience high temperatures due to heat generated by the lamp and their sealed structure. These high temperatures reduce light output and shorten lamp lifespan, potentially causing thermal shock deformation in nearby components. While previous research has investigated various aspects of LED lamp design and heat dissipation, including

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Figure 1. Overview of the LED Headlamp

LED Headlamp Development for Mass Production

1. Overview: 2. Research Background: 3. Research Objectives and Research Questions: 4. Research Methodology 5. Key Research Findings: 6. Conclusion and Discussion: 7. Future Follow-up Research: 8. References: 9. Copyright: This material is a summary based on the above paper, and unauthorized use for commercial purposes is prohibited.Copyright © 2025 CASTMAN. All rights reserved.

Fig. 9 A model proto-typed for experiment

Effect of Heat Sink Structure on Cooling Performance of LED Bulb

1. Overview: 2. Research Background: LEDs are increasingly used due to their long lifespan and high efficiency. However, LEDs are point heat sources, leading to localized temperature increases in the surrounding polymer molding material, peripheral devices, and the LED element itself. This temperature rise negatively impacts luminous efficiency (a 5-8% decrease for every 10°C increase),

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Fig. 14. Heat pipe heat sink for low beam LED package cooling

Cooling of LED headlamp in automotive by heat pipes

1. Overview: 2. Research Background: 3. Research Objectives and Research Questions: 4. Research Methodology: 5. Key Research Findings: 6. Conclusion and Discussion: 8. References: [1] US Department of Energy, Energy Efficiency of LEDs, PNNL-SA-94206, March 2013, Available: http://energy.gov/eere/ssl/downloads/energy-efficiency-leds.[2] OSRAM GmBH, Viewed: 27 March 2016, Available: http://www.osram-os.com/osram_os/en/index.jsp.[3] R. Singh, M. Mochizuki, Y. Saito, T. Yamada, T.

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Figure 3. Thermocouple mounting positions in the heatsink and headlamp reflector

AUTOMOTIVE HEADLAMP HIGH POWER LED COOLING SYSTEM AND ITS EFFECT ON JUNCTION TEMPERATURE AND LIGHT INTENSITY

1. Overview: 2. Background: Automotive headlamps are crucial for nighttime safety and vehicle aesthetics. Historically, halogen and xenon bulbs were prevalent, but halogen bulbs are inefficient, generating significant heat, while xenon bulbs have slower ignition times. High-Power Light Emitting Diodes (HPLEDs) offer higher efficiency and longer lifespans, but their compact size leads to high junction

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A Study on Cooling Characteristics of the LED Lamp Heat Sink for Automobile by Forced Convection

A Study on Cooling Characteristics of the LED Lamp Heat Sink for Automobile by Forced Convection

1. Overview: 2. Research Background: Automotive headlamps are crucial for driver visibility, and LED lamps are gaining popularity due to their energy efficiency and long lifespan. However, the high heat generation of LED lamps can reduce their lifespan and efficiency. Existing water-cooled cooling plates and heat pipes offer superior cooling performance but are limited by

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Fig .4 Thermal management of LED head lamp

Heat Dissipation Design of High Power LED Headlamp

1. Overview: 2. Background: High-brightness white light-emitting diodes (LEDs) are very promising in many new illumination applications. LED light sources offer advantages such as long lifespan, fast response speed, environmental friendliness (mercury-free), and a color temperature (5500K-6000K) closer to natural light than xenon sources (4000K). The increasing use of LEDs in automotive lighting (interior lights,

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