HSR High Speed Bullet Train Rail Stretch Forming Machine for high speed train rail system bending, Specialize in tight tolerances and demanding specifications.
Checking: Panel fixture（laser cutting，observe the arc is tangent or not ）
Notch（CNC mill the complete groove, or obtain key point（3d)), special fixture.
Quantity/ efficiency 1、High quality, large quantity, such as automotive parts, 40 seconds / piece, stretch bending, otherwise roll bending. 2、More than 2 times by roller bending, qualified rate guaranteed over 90%, otherwise below 40%；
Qualified rate Roller bending: 2 times or more forming times, more than 85%; The rest 15% can be simply corrected; all saying that qualified rate more than 90% by once time deformation is deceptive, up to 50% (In roller bending there are high requirements for raw material, temperature, equipment and so on) .Stretch bending qualified rate can reach more than 99%, and the quality is higher.
Correction Regarding to sampling or small production, shall choose roller bending，manual correction is one of the core processes (3D can not be corrected)
Checking plane Detect inner arc or outer arc ? If outer arc stretching, internal arc will shrink or unchanged, the material must be deformed, the checking standard can only based on key point or key surface