Reinforcement structure for boom of work machine

A boom for a work machine, the boom comprising:

• a top plate;
• a bottom plate facing the top plate;
• a pair of side plates spanning between and attached to the top plate and the bottom plate,
• the top plate, the bottom plate, and the pair of side plates defining an internal space therebetween;
• a boom foot boss disposed at an end of the boom, and configured to pivotally attach the boom to a body of the work machine;
• a curved portion defined by the top plate, the bottom plate, and the pair of side plates, and disposed in a middle of the boom along a longitudinal direction,
• the top plate including a top planar portion disposed between the curved portion and the boom foot boss along the longitudinal direction,
• the bottom plate including a bottom planar portion disposed between the curved portion and the boom foot boss along the longitudinal direction;
• and
• a baffle attached directly to the top planar portion and the bottom planar portion, and extending across the internal space between the pair of side plates,
• the baffle including an upper surface and a lower surface, the upper surface being inclined relative to the lower surface to define a convexity of the baffle, the convexity of the baffle pointing away from the boom foot boss along the longitudinal direction,
• the upper surface of the baffle being disposed between the lower surface of the baffle and the top planar portion along a vertical direction, the vertical direction being transverse to the longitudinal direction,
• the lower surface of the baffle being disposed between the upper surface of the baffle and the bottom planar portion along the vertical direction.