CN110481002A - 一种3d打印制备个性化硬质防护服的方法 - Google Patents
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Abstract
本发明是一种3D打印制备个性化硬质防护服的方法,属于激光加工、3D打印技术领域。本发明首先利用360°动态扫描仪获取高精度三维模型数据;之后采用三维建模软件根据三维数据设计个性化硬质防护服,并在模型设计中加入极小曲面、蜂窝等点阵结构达到减重的目的;模型设计好之后利用激光选区烧结3D打印技术制备个性化硬质防护服,采用3D打印参数:打印印参数层厚0.10‑0.18mm;温度169‑171℃;激光功率30‑40W;扫描速度3000‑3600mm/s;最后利用压力为0.4‑0.8Mpa干燥气流喷射玻璃珠对个性化硬质防护服进行清理,实现3D打印技术制备个性化硬质防护服。
Description
技术领域
本发明涉及激光加工、3D打印技术领域,特别是设计了一种个性化硬质防护服,并采用选区激光烧结3D打印技术完成个性化硬质防护服一体化制备。
背景技术
近年来,随着经济的发展,人类受到潜在伤害的几率不断增加,各种防护服不断的涌现出来,比如隔热防护服、避火服、化学防护服、电磁辐射防护服、紫外线防护服等,这些防护服均可以实现对人体的防护,让人免受予伤害。但这些防护服均是针对绝大多数人,并未实现针对个人的个性化制造,因此会存在穿着不合适、不舒服的问题。此外,防护服一般比较厚重,人类穿着行动受限并且不方便,在紧急时刻会造成极大的不便。因此为了穿着合适、舒服、并且轻质,需要实现轻量化和个性化制造。20世纪80年代3D打印技术的出现,为实现防护服轻量化、个性化、定制化制造提供了可能性。3D打印可以从材料和结构两方面实现轻量化制造,个性化、定制化缘于其特殊的逐层成型方式。
因此,本发明主要采用激光选区烧结3D打印技术设计并制备个性化硬质防护服。从最初的三维数据获取到模型设计、制备并清理个性化硬质防护服,最后实现个性化硬质防护服的一体化制备。
发明内容
本发明的目的是提供一种3D打印设计并制备个性化硬质防护服的方法。
本发明的目的通过以下技术方案实现的:
1)扫描模型,获取三维数据。采用三维动态扫描仪,对人体进行高精度快速360°扫描,扫描仪捕捉速度可达0.15ms,精度<0.05mm RMS,整个扫描过程在1min之内即可完成;
2)建立模型,根据步骤一获得的三维数据利用三维建模软件设计个性化定制防护服。并且防护服的设计采用极小曲面、蜂窝等点阵结构达到减重的目的。
3)利用3D打印技术选区烧结法制备步骤二中设计的个性化定制轻质防护服。打印参数:层厚0.10、0.12、0.18mm;温度169-171℃;激光功率30-40W;扫描速度3000-3600mm/s。
4)利用喷砂技术清理步骤三中打印好的个性化定制轻质防护服。喷砂中采用玻璃珠,利用高压气流对打印件表面进行清理,其气流为干燥的空气,气压范围为0.4-0.8Mpa。
本发明是设计一种个性化硬质防护服,并利用激光选区烧结3D打印技术实现其一体化制备。目前尚未出现利用3D打印技术制备个性化硬质防护服的方法。本方法具有明显的创新性:
1)本方法使用的360°动态扫描仪,可以在1min内获取精度<0.05mm RMS的个性化定制三维模型数据;
2)本方法根据上述获得的三维模型数据利用三维建模软件设计了带有极小曲面、蜂窝等点阵结构的个性化轻质硬质防护服,极小曲面结构主要为Batwing结构,孔隙率为75%-80%。蜂窝点阵结构主要采用比强度和比刚度较大的六边型结构和Kagome型结构;
3)本方法采用选区激光烧结3D打印技术一体化制备个性化硬质防护服。在打印参层厚0.10-0.18mm;温度169-171℃;激光功率30-40W;扫描速度3000-3600mm/s参数下实现高质量个性化硬质防护服制备;
4)本方法采用压力为0.4-0.8Mpa气流喷射玻璃珠进行清理模型,玻璃珠可以对打印件表面进行打磨,实现高精度制备个性化硬质防护服。
附图说明
图1是本发明所述利用选区激光烧结技术制备的高质量、高精度个性化硬质防护服部分结构
图2是本发明所述利用选区激光烧结技术制备的高质量、高精度个性化硬质防护服内部点阵结构的切面示意图,左边是六边形蜂窝结构,右边是Kagome蜂窝结构。
具体实施方式
下面结合附图对本发明具体实施方式做进一步详细说明:
第一步:扫描人体
本步骤旨在获取人体三维模型数据,利用360°动态扫描仪对站立在扫描仪中间的人间进行拍摄,其中扫描仪有36组摄像,捕捉速度可达0.15ms,之后利用扫描仪软件进行三维模型合成,整个获取三维模型数据在1min之内即可完成,并且模型的几何精度<0.05mmRMS。
第二步:建立模型
根据步骤一获取的高精度三维人体模型数据,参阅图1,利用建模软件设计个性化硬质防护服,在防护服的表面存在极小曲面、蜂窝等点阵结构,这些点阵结构均是为了达到减重的目的。
第三步:制备模型
本步骤旨在利用选区激光烧结3D打印技术制备步骤二设计好的个性化硬质防护服,主要包括准备数据,打印及清理等步骤:
1)数据准备:将设计好的个性化硬质防护服存为STL格式并导入magics软件中,在magics软件中对模型进行位置摆放,修复等操作,之后利用切片软件对模型进行切片处理,最后将切片文件导入控制打印机的软件中;
2)打印及清理:待切片文件导入控制打印机的软件中之后,操作此控制软件设置打印参数,参数可以选择:层厚0.10、0.12、0.18mm;温度169-171℃;激光功率30-40W;扫描速度3000-3600mm/s,设置好之后,即可进行打印,打印过程中,打印机根据模型的截面信息进行逐层打印,打印完成后,取出后进行清理,利用压力为0.4-0.8Mpa气流喷射玻璃珠进行清理模型。待清理完毕之后,即完成个性化硬质防护服一体化制备。
Claims (5)
1.一种3D打印制备个性化硬质防护服的方法,其特征在于,包括以下步骤:
1)扫描模型,获取三维数据;采用三维动态扫描仪,对人体进行360°扫描,根据物体造成的光信号的变化来计算物体的位置和深度,进而复原整个三维空间;
2)建立模型,根据步骤一获得的三维数据利用三维建模软件设计个性化定制防护服;并且防护服的设计采用点阵结构达到减重的目的;
3)利用3D打印技术——选区激光烧结法制备步骤二中设计的个性化定制的轻质防护服;
4)利用喷砂技术清理步骤三中打印好的个性化定制轻质防护服;喷砂中采用玻璃珠,利用高压气流对打印件表面进行清理。
2.根据权利要求1所述的3D打印制备个性化硬质防护服的方法,其特征在于1min内获取精度<0.05mm RMS的个性化定制三维模型数据,扫描仪捕捉时间为0.15ms。
3.根据权利要求1所述的3D打印制备个性化硬质防护服的方法,其特征在于防护服的设计中采用极小曲面、蜂窝结构相复合的点阵结构;极小曲面结构为Batwing结构,孔隙率为75%-80%;蜂窝点阵结构采用六边型结构或Kagome型结构。
4.根据权利要求1所述的3D打印制备个性化硬质防护服的方法,其特征在于选区激光烧结3D打印技术打印参数为:层厚0.10-0.18mm;温度169-171℃;激光功率30-40W;扫描速度3000-3600mm/s。
5.根据权利要求1所述的3D打印制备个性化硬质防护服的方法,其特征在于采用压力为0.4-0.8Mpa的干燥气流喷射玻璃珠进行清理模型,喷砂所用的玻璃珠目数为170-325,最小硬度为5.5,圆度>70%。
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