Five-Axis VMC Processes Complex Parts in Aluminum, Die-Cast, Titanium
Makino’s DA300 full five-axis vertical machining center is said to provide the speed, precision and flexibility necessary for complex part applications. Single-setup machining, multi-side accessibility and full-contouring capability enables quick and efficient work on a variety of complex production part applications common to industrial hydraulic and pneumatics elements; optical, electrical and semiconductor components; medical and dental products; die-cast parts; automotive components; and aerospace parts.
The integral 340 × 300-mm worktable accommodates workpiece sizes ranging to 450 mm in diameter and 400 mm tall, and weighing as much as 250 kg. The machine provides X-, Y- and Z-axis travels measuring 450 × 620 × 500 mm with feed rates ranging to 60,000 mm/min. The direct-drive, motor-driven A-axis table offers 150 degrees (+30 to -120) of tilt capability at 100 rpm.
The DA300 comes equipped with a 20,000-rpm, HSK-A63 spindle, delivering the speed and flexibility to tackle high-speed, productive machining of various workpiece materials including aluminum, die-cast, steel and titanium. According to the company, acceleration and deceleration to and from full speed can be accomplished in 1.5 sec., reducing chip-to-chip times. Additionally, the machine’s standard configuration includes a 60-position ring-type tool magazine with capacity for a variety of tooling as well as a Vision BTS to verify the integrity of the tooling prior to use.
The machine’s Professional 6 (Pro6) control moves operators through machine setup, with features designed to enhance safety and dynamic control in addition to reducing cycle times.
... not to mention grinding with air. Thanks to high speed spindles powered by shop air, this job shop expands the work its VMCs can do.
The force that holds the toolholder in the machining center's spindle can weaken over time. If you haven't checked drawbar force in a while, this may be the weak link in your process.
While aluminum molds are commonly used to create prototypes or to serve as stopgap bridge tooling, they are starting to receive greater attention for production work. This shop’s approach to creating aluminum molds in one day to three weeks is the same for each of these situations.