为了增强对电阻焊过程的监控,便于焊接生产的质量管控,基于Visual Studio 2013设计了一套具有串口通信、数据记录、质量监控等多种功能的电阻焊质量监控系统。系统运用统计过程控制理论,以容易检测的焊接电流、电压、功率为监控对象,结...为了增强对电阻焊过程的监控,便于焊接生产的质量管控,基于Visual Studio 2013设计了一套具有串口通信、数据记录、质量监控等多种功能的电阻焊质量监控系统。系统运用统计过程控制理论,以容易检测的焊接电流、电压、功率为监控对象,结合监控对象的最大值、最小值、平均值、标准差、频数分布等多种统计信息,实现了对焊接过程的实时监控和分析评估,依据焊接过程的稳定性来评估焊接质量。结果表明,系统能够反映焊接过程的异常情况,结合影响电阻焊的主要因素可进一步分析引起过程异常的可能原因,指导焊接过程的调整优化。展开更多
It is difficult to weld the material and structure of implantable neuro-stimulator such as pure medical titanium and irregular outside shield by conventional arc welding methods.Currently there are few reports on the ...It is difficult to weld the material and structure of implantable neuro-stimulator such as pure medical titanium and irregular outside shield by conventional arc welding methods.Currently there are few reports on the neuro stimulator sealing technology,and none of them have simultaneously considered the quality control methods.In order to develop the sealing procedure and quality control methods,an investigation of applying Nd：YAG laser welding to implantable neuro-stimulator components is carried out.Firstly,the automatic Nd：YAG laser welding system equipped with proper fixture configuration is introduced.A special fixture structure is illustrated and the key point for the device is to reduce the fit-up gap between the two shields.Then,a novel welding process technique is proposed to satisfy the engineering requirements.The optimized process parameters for titanium shell,feedthrough and fastener are provided and concluded by an orthogonal experiment.Finally,different quality control measures such as visual inspection,X-ray detecting and leakage testing,are presented on the final products.The results show that the Nd：YAG laser welding applied on the implanted neuro-stimulator under optimized parameters can prevent welding defects and improve the weld joints quality.Combination of various quality control methods will guarantee the sealing performance and mechanical properties of the products.It is confirmed that the processing procedure and quality methods can not only resolve the process technology on welding ultra-thin structure of medical device,but also provide the reference for other implantable device.展开更多
文摘为了增强对电阻焊过程的监控,便于焊接生产的质量管控,基于Visual Studio 2013设计了一套具有串口通信、数据记录、质量监控等多种功能的电阻焊质量监控系统。系统运用统计过程控制理论,以容易检测的焊接电流、电压、功率为监控对象,结合监控对象的最大值、最小值、平均值、标准差、频数分布等多种统计信息,实现了对焊接过程的实时监控和分析评估,依据焊接过程的稳定性来评估焊接质量。结果表明,系统能够反映焊接过程的异常情况,结合影响电阻焊的主要因素可进一步分析引起过程异常的可能原因,指导焊接过程的调整优化。
基金supported by National Key Technology R&D Program during the 11th Five-Year Plan Period (Grant No. 2006BAI03A18)
文摘It is difficult to weld the material and structure of implantable neuro-stimulator such as pure medical titanium and irregular outside shield by conventional arc welding methods.Currently there are few reports on the neuro stimulator sealing technology,and none of them have simultaneously considered the quality control methods.In order to develop the sealing procedure and quality control methods,an investigation of applying Nd：YAG laser welding to implantable neuro-stimulator components is carried out.Firstly,the automatic Nd：YAG laser welding system equipped with proper fixture configuration is introduced.A special fixture structure is illustrated and the key point for the device is to reduce the fit-up gap between the two shields.Then,a novel welding process technique is proposed to satisfy the engineering requirements.The optimized process parameters for titanium shell,feedthrough and fastener are provided and concluded by an orthogonal experiment.Finally,different quality control measures such as visual inspection,X-ray detecting and leakage testing,are presented on the final products.The results show that the Nd：YAG laser welding applied on the implanted neuro-stimulator under optimized parameters can prevent welding defects and improve the weld joints quality.Combination of various quality control methods will guarantee the sealing performance and mechanical properties of the products.It is confirmed that the processing procedure and quality methods can not only resolve the process technology on welding ultra-thin structure of medical device,but also provide the reference for other implantable device.
