Machining Center Offers Turning, Thread Generation
IMTS 2018: Starrag’s Heckert DBF 630 six-axis machining center enables turning, milling, boring, drilling and thread generation operations in one setup.
Starrag’s Heckert DBF 630 six-axis machining center enables turning, milling, boring, drilling and thread generation operations in one setup. The machine is said to be particularly useful for oil and gas industry parts such as fluid ends, gate valves, drill bits and pump housings.
The center features a B-over-A trunnion table and a 45-kW (60-horsepower) U-axis head with 1,700 Nm (1,254 ft/lbs) of torque. To consolidate machining operations, the head consists of a faceplate with integrated work spindle and CNC radial facing slide.In addition to external, internal and face turning, the head enables conical and contour turning courtesy of the radial-facing slide’s NC axis. For turning on a fixed workpiece, the rotating turning tool, which has an axial runout of 5 to 6 µm, can be adjusted by ±35 mm.Other features include
a 40-tool automatic tool changer and pallets measuring 630 × 630 mm that can accommodate loads as heavy as 1,000 kg.
Vibration is at the heart of a variety of common problems in machining holes. Mathematical analysis is helping to bring about a better understanding of hole-making processes...including how these vibrations behave, and what steps to take to bring them under control.
Recent tap geometry refinement and advances in coating technologies have made the chip-less, cold-forming operation suitable for a wider range of workpiece materials.
The more common twist drill point geometries often are not the best for the job at hand. By choosing the best point for the material being drilled, it is possible to achieve better tool life, hole geometry, precision, and productivity.