| Bent Axis Pumps | (english) In this pump, the pistons are at an angle to the drive shaft and Thrust Plate. The piston block shaft is connected to the drive shaft by a universal joint, not shown. The drive shaft, thrust plate, piston block shaft, and piston block all revolve. The connecting rods are attached to the thrust plate and revolve with it, unlike the swash plate pump where the piston rods slide past a stationary swash plate. The outlet ports are semi-circular holes in the Valve Plate, shown on the far right of the animation on edge and in a head-on view below, right. As the pump revolves, half the pistons suck in fluid as they pass over the intake port. The other pistons discharge their fluid through the outlet port. This pump should be compared to the radial piston pump, swash plate pump, and wobble pump. |
| Blacking Hole | (english) Irregular-shaped surface cavities in a casting containing carbonaceous matter. Caused by spilling off of the blacking from the mold surface. |
| Blind Bole | (english) A hole made in a workpiece that does not pass through it. |
| Blowhole | (english) A defect in a casting caused by trapped steam or gas. |
| Blowhole 2 | (english) A cavity which was produced during the solidification of metal by evolved gas, which in failing to escape is held in pockets. |
| Boss | (english) A projection or an enlarged section of a casting through which a hole may be machine. |
| Broach | (english) A long, tapered cutting tool with serrations which,when forced through a hole or across a surface, cuts a desired shape or size. |
| Broaching | (english) Smoothing machined holes or outside surfaces of castings by drawing pushing on or more broaches (special cutting tools) through the roughed out hole. |
| Broaching 2 | (english) Multiple shaving, accomplished by pushing a tool with stepped cutting edges along the piece, particularly through holes. |
| clearing hole | รูที่เจาะไว้โตกว่าขนาดของนอตเล็กน้อย |