Article(id=1202250855480255131, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1202250853794148439, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20200272, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1764568540687, onlineDateStr=2025-12-01, pubDate=1674144000000, pubDateStr=2023-01-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764568540687, onlineIssueDateStr=2025-12-01, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764568540687, creator=13701087609, updateTime=1764568540687, updator=13701087609, issue=Issue{id=1202250853794148439, tenantId=1146029695717560320, journalId=1189873562199433220, year='2023', volume='', issue='1', pageStart='1', pageEnd='72', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1764568540285, creator=13701087609, updateTime=1764576081444, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1202282483787194627, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1202250853794148439, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1202282483787194628, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1202250853794148439, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=15, endPage=18, ext={EN=ArticleExt(id=1202250856449139357, articleId=1202250855480255131, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Application of SLM Technology in Conformal Cooling Mould of Circuit Board Shell, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Based on the Dongfeng vehicle project, the conformal cooling channel consistent of the circuit board shell was established. The effect of the conformal cooling scheme was analyzed by MoldFlow and ANSYS, and compared with the traditional cooling scheme. Finally, the metal 3D printing process was used to fabricate the mold kernel and the cooling channel, which was verified on the injection mold. The results show that the conformal cooling scheme greatly improves the injection efficiency and reduces the deformation of the product.

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结合东风车型项目，以电路板外壳为研究对象，建立了与产品外形相吻合的随形冷却水道，利用MoldFlow和ANSYS对随形冷却方案效果进行分析，并与传统冷却方案进行对比。最后采用金属3D打印工艺制作模仁及冷却水道，在注塑模具上进行验证，结果显示，随性冷却方案大大提高了注塑效率，减少了产品变形。

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汪祥（1990—），男，工程师，硕士学位，研究方向为汽车试制技术与工艺研究。

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汪祥（1990—），男，工程师，硕士学位，研究方向为汽车试制技术与工艺研究。

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性能 指标	3D打印试样			其它加工方法试样
	420	18Ni300	18Ni300 （热处理）	S42020（GB/T 1220—2007）	标准性能（820 ℃固溶，480 ℃时效6 h）
拉伸 强度/MPa	1 550±50	1 100±50	2 050±50	≥635	2 050±50
屈服 强度/MPa	1 350±50	950±50	1 950±50		1 970
硬度/HRC	48~54	30~35	50~55	≥15	53

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3D打印材料与模具钢材料性能对比

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性能 指标	3D打印试样			其它加工方法试样
	420	18Ni300	18Ni300 （热处理）	S42020（GB/T 1220—2007）	标准性能（820 ℃固溶，480 ℃时效6 h）
拉伸 强度/MPa	1 550±50	1 100±50	2 050±50	≥635	2 050±50
屈服 强度/MPa	1 350±50	950±50	1 950±50		1 970
硬度/HRC	48~54	30~35	50~55	≥15	53

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90°		75°		60°		45°
上表面	下表面	上表面	下表面	上表面	下表面	上表面	下表面
3.7	4.6	5.8	6.3	7.2	7.5	9.7	11.2

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不同烧结方向粗糙度R_a μm

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90°		75°		60°		45°
上表面	下表面	上表面	下表面	上表面	下表面	上表面	下表面
3.7	4.6	5.8	6.3	7.2	7.5	9.7	11.2

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产品穴数	1×2	注塑材料	PBT
注塑材 料熔点/℃	250~270	产品冷却定型 出模温度	<50
产品重要尺寸要求	口部变形≤0.3 mm
冷却介质	传统冷却模 仁设计	3D打印随型 冷却模仁设计	效率提升
	批量注塑 成型时间/s	批量注塑成型时间/s
常温冷 却水	100	55	45.00%
恒温20 ℃冷却水	80	40	50.00%

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试模数据对比

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产品穴数	1×2	注塑材料	PBT
注塑材 料熔点/℃	250~270	产品冷却定型 出模温度	<50
产品重要尺寸要求	口部变形≤0.3 mm
冷却介质	传统冷却模 仁设计	3D打印随型 冷却模仁设计	效率提升
	批量注塑 成型时间/s	批量注塑成型时间/s
常温冷 却水	100	55	45.00%
恒温20 ℃冷却水	80	40	50.00%

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