Method and device for machining flange part of wheel arch

A method of machining a flange of a wheel arch to bend said flange of said wheel arch of a vehicle body, comprising the steps of:

• disposing workpiece guide means with a predetermined clearance provided on an outer surface of said flange of said wheel arch and disposing workpiece rest means with a predetermined clearance provided on an inner surface of said flange of said wheel arch;
• moving said workpiece guide means and said workpiece rest means closely to each other to dispose said workpiece guide means on the outer surface of said flange and to dispose said workpiece rest means on the inner surface of said flange;
• and
• bending said flange with workpiece bending means while said workpiece guide means is holding the outer surface of said flange and said workpiece rest means is holding the inner surface of said flange.

An apparatus for machining a flange of a wheel arch to bend said flange of said wheel arch of a vehicle body, comprising:

• a base;
• first slide means slidably mounted on said base, with workpiece guide means being disposed on said first slide means;
• second slide means slidably mounted on said base, with workpiece rest means and workpiece bending means being disposed on said second slide means;
• and
• mutual distance changing means for moving said first slide means and said second slide means toward and away from each other.