The on-line control of Friction Stir Welding processes using ultrasonic test techniques

使用超声波测试技术在线控制搅拌摩擦焊过程

• 批准号: 101265
• 金额: $ 54.79万
• 依托单位: KUKA ROBOTICS UK LTD
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2013
• 资助国家: 英国
• 起止时间: 2013 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=101265
• 关键词: line; control; Friction; Stir; Welding

The Project aims to develop a cost effective and novel Non-Destructive Testing (NDT) technique for the in-process examination of Friction Welds used in the fabrication of welded aluminium structures for the marine, rail, automotive and aerospace industries. The NDT development will be based on high frequency, oblique incident angle, Non-Linear Ultrasonic Testing (NLUT) that will have the capability of detecting early stage 'joint line defects' in the bond region (so called kissing bond) of the weld that has been inherently difficult to inspect because of the poor signal to noise ratio at the size of defects requiring detection against the weld material structure. Failure to detect the joint line defects at an early stage can lead to safety critical component failure with catastrophic consequences. The project will benefit UK industry by enabling the full potential of FSW and LFW to be exploited, this not having been previously possible due to the lack of commercial in-process NDT inspection technology.

该项目旨在开发一种具有成本效益和新颖的无损检测（NDT）技术，用于在船舶，铁路，汽车和航空航天工业的焊接铝结构制造中使用的摩擦焊缝的过程检查。NDT开发将基于高频、倾斜入射角、非线性超声测试（NLUT），其将具有检测焊接的接合区域（所谓的对接接合）中的早期“接合线缺陷”的能力，由于需要检测焊接材料结构的缺陷尺寸的信噪比差，因此该焊接固有地难以检测。未能在早期阶段检测到接合线缺陷可能导致安全关键部件故障，并造成灾难性后果。该项目将使英国工业受益，使FSW和LFW的全部潜力得到利用，这在以前是不可能的，因为缺乏商业化的过程中无损检测技术。