The disc-shaped flange, as the core component of pipeline connection, its accuracy directly affects the sealing performance of the system. The combined turning and milling process is the key technology for achieving efficient manufacturing. Today, let's take a look at its production process.
The first step is the turning process. The round steel raw material is fixed on the chuck of the CNC lathe, and the tool first turns the outer circle and end face to ensure the flatness of the reference surface; then, the center hole is drilled for positioning in the subsequent processing; finally, the sealing groove and bolt hole steps are turned, with the tolerance controlled within 0.02mm to avoid leakage of the seal.
Then it moves to the milling stage. The CNC milling machine automatically locates according to the drawing, and uses a face mill to mill the bolt holes on the flange end face, achieving uniform distribution around the circumference with the aid of the indexing plate; for some complex flanges, the sealing surface grooves need to be milled, and at this time, a ball nose mill needs to be switched to ensure the smoothness of the bottom of the groove arc.
Throughout the process, attention should be paid to matching the cutting parameters: the rotational speed during turning is controlled at 800-1200r/min, while during milling it is reduced to 500-800r/min, and combined with emulsion cooling, which can not only improve efficiency but also ensure that the surface roughness of the flange reaches the Ra1.6μm standard. The cooperation of turning and milling makes the mass production of precise flanges more reliable.
Soporta red IPv6
