The invention relates to a forming method of an
active cooling type
turbine guider. The forming method comprises the steps that S1, the hole pattern of a cooling hole is improved; s2,
quartz rod improvement: the length and
diameter of a
quartz rod are determined according to the length and aperture of a cooling hole, and the content of
silicon dioxide in the
quartz rod is 40-80%; s3, smearing an organic
coating, namely
coating one end, extending out of the cooling hole, of the quartz rod with an organic
coating layer; s4, making a shell by adopting a multi-layer coating process; S5,
roasting; and
roasting by adopting a gradient
roasting process. Through the
special design of the cooling holes, the problem that through holes are difficult to form in the 3D printing process is effectively solved. In a traditional manufacturing method, due to the fact that the
diameter of a product hole is small, the product hole cannot be in effective contact with a dissolving solution, and a through hole of a
wax mold is difficult to form. In the embodiment, the
diameter of the middle section of the cooling hole is increased, and the length of the middle section of the cooling hole is limited, so that the supporting
wax can be smoothly dissolved and effectively contacted with the dissolving solution, and the quartz rod is prevented from being clamped in the cooling hole due to
thermal expansion.