Within the domain of heat sink applications, metal additive manufacturing affords designers exceptional design freedom and facilitates transformative advancements in weight reduction, volume minimization, performance enhancement, and efficiency improvement. Metal additive manufacturing technology has been extensively adopted in the fabrication of heat sinks. Compared with conventionally manufactured counterparts, heat sinks produced via metal additive manufacturing exhibit consistent reductions exceeding 80% in weight, volume, and manufacturing lead time, coupled with a reduction in production costs of more than 50%, all while achieving the dual objectives of lightweight construction and high performance. By leveraging metal additive manufacturing, optimized heat sink designs can be realized through integrated, monolithic fabrication, enabling accelerated iterative development and low-cost production that balances both manufacturing efficiency and economic viability.

1. Lightweight Design: Optimizing component design and process architecture achieves lightweighting of parts in the heat exchanger sector.  
2. Cost Reduction: Substantially shortening component development cycles and effectively reducing resource consumption in heat exchanger systems, thereby enhancing economic efficiency.  
3. Performance Enhancement: Utilizing high-performance materials endows heat exchangers, reactors, and related components with exceptional high-temperature resistance, extending equipment service life and significantly improving operational efficiency and performance metrics.

Using metal powder as raw material, the 3D model data is sliced in the Z direction into two-dimensional planar graphics. The two-dimensional planar graphics are sintered and formed on the powder bed by controlling the laser path with a galvanometer, and then the two-dimensional graphics are stacked to form a three-dimensional part.

Material type	Material designation	Tensile Strength / MPa		Yield Strength/MPa		Ductility/%
		X-axis and Y-axis direction	Z-axis direction	X-axis and Y-axis direction	Z-axis direction
Aluminium alloy	AlSi10Mg	456±30	440±30	311±30	270±30	8±2
	AlSi7Mg	424±20	405±20	289±20	262±20	≥7
	aldural	541±15	515±15	520±15	475±30	≥10
Titanium alloy	TC4	1040±90	1050±90	980±90	1000±90	14±4
	TA15	1118±100	1142±100	1064±100	1118±100	12±4
Stainless steel	316L	678±20	650±20	427±30	418±30	51±10
	304L	600±50	597±50	353±20	352±20	55±10
	4J36	550±50	530±50	492±50	472±50	34
	17-4PH	1110±50	1109±50	1073±50	1046±50	≥15
Die steel	MS1（1.2709/18Ni300）	1833±50	1805±50	1772±50	1739±50	≥7
High temperature alloy	GH4169（In718）	1400±50	1250±50	1250±50	1250±50	9~20
	GH3625	900±50	850±50	410±50	390±50
	GH5188	954±20	888±20	449±20	441±20	64±10
	GH3536	878±50	885±50	548±30	549±30	37±10
	GH4099	1215±50	1170±50	1047±50	988±50	30±5