# 1995 Edinburgh
This paper describes an initial programme of work to examine the feasibility of joining polyethylene pipe using the linear vibration welding technique. Commercial linear vibration welding equipment was used to join small lengths (100mm) of 125mm SDR11 PE80 and 180mm SDR17.6 PElOO pipe. Welds were achieved in total welding/cooling times of 15-30s which is approximately 1150th of the time required for butt fusion joining equivalent sized pipes. Telisile test coupons cut from the welds failed in a ductile manner with tensile strength values similar to those obtained for butt fusion welds.