Gas turbine guide pipe and forming method thereof

The invention belongs to fluid pipelines and forming methods thereof. A gas turbine guide pipe and a forming method thereof are provided in order to solve the technical problems that in a gas turbinegas inflow guide pipe of an engine in the prior art, it is required that pressure losses are small, and meanwhile it is required that the structural strength and the reliability are high. The gas turbine gas inflow guide pipe comprises a three-way gas inflow channel and a C-shaped gas outflow channel. The three-way gas inflow channel comprises a first bent portion and a second bent portion. An annular groove is formed by the C-shaped gas inflow channel and the second bent portion of the three-way gas inflow channel jointly, and the first bent portion of the three-way gas inflow channel is located in the middle of the second bent portion of the three-way gas inflow channel. A splitter plate is arranged in the first bent portion of the three-way gas inflow channel along the axis, the two sides of the splitter plate