Horizontal Boring Mill Work
Horizontal boring mills were developed to perform a number of applications in one setup instead of using several different machines. Operations that can be performed on a horizontal boring mill include, drilling, milling, tapping, reaming, shaping and contouring. The arrangement of the horizontal boring mill allows easy access and placement of the workpiece on the machine table. Large workpieces can be placed on the machine table with an overhead crane and can overhang the table if needed. The arrangement also allows for easy chip removal from the machining operation.
Withers Tool, Die and Manufacturing operates five horizontal boring mills. The largest machine has an operating window of 157” in X and 92” in Y. An auxiliary rotary table can be added to the mill for 4th axis milling while a part is being rotated. This is used for machining parts such as fluted rolls and internal helical grooves inside bushings. Two of the horizontal boring mills have rotary tables for machining on different sides of the part in one setup.