Abstract: Tool apparatus is provided for flaring the end portion of thermoplastic pipes and tubes, and includes a flaring head having a forming recess adapted to receive the pipe end portion and a cam edge portion adjacent to the recess for engaging the pipe end portion in a forming action. Mandrel means are threadedly connected with the flaring head for movement of the head toward the mandrel means about which the pipe being formed is clamped. The forming recess is defined by a frusto-conical surface inclined to the axis of the head in cooperation with an oppositely inclined surface, and the cam edge portion is defined between the frusto-conical surface and a side wall portion of the head. The diameter of the apex of the circular V intersection of the recess-defining surfaces is preferably equal to the outside diameter of the pipe.

Abstract: A tool for flaring and doubling over the end of thermoplastic pipe and tubes wherein the tool includes a pair of superposed clamping bars, one being mounted to a stationary fixture and the other bar being hingedly connected at one end thereto. The hinged bar clamp is held in a clamped fixed position by a releasable toggle clamp device which is secured to the fixed bar clamp. Each bar is provided with a plurality of corresponding arcuate non-semicircular notches of various sizes to accommodate each particular sized pipe. A mandrel and flaring head which can be power driven, is also provided for flaring and doubling over the free end of the plastic tube or pipe when positioned within the clamping tool.