9/4/2019 | 3 MINUTE READ

On Manufacturing

Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

Tools for Milling and Boring Sandvik Coromant has developed new insert geometries for its CoroMill 331 milling cutter, geometries for radius inserts.

Share

Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

Tools for Milling and Boring

Sandvik Coromant has developed new insert geometries for its CoroMill 331 milling cutter, geometries for radius inserts. The -M30 geometry is designed to optimize steel and cast-iron groove milling (although it should be noted that the CoroMill 331 can perform face, shoulder, side, and face milling, as well as grooving). The geometry, which is available for size 11 inserts with dimensions from 1.5 to 3.0 mm, is characterized by its light cutting action. However, it should be noted that the geometry is sufficiently tough such that it is particularly useful for operations when there are weak setups or long overhangs. The grades the inserts are available in include GC1130, GC1020, GC3040, and GC4330. In addition to which, Sandvik is offering size 8, 11 and 14 inserts with a 4.0-mm radius in -WM geometry in the aforementioned grades. In addition to which, Sandvik has developed a new generation of its CoroBore 825 dampened fine-boring tool, this that uses what’s known as “Silent Tools” technology. That tech uses dampers that are specifically dimensioned to suit every adapter size in the range, and which result in the ability to securely machine setups where there are long overhangs. A couple of changes for the boring tool include a switch from steel to aluminum for the boring head, and the head is shorter so that the damper is closer to the cutting edge. What’s more, according to Jenny Nilsson, Global Product Manager at Sandvik Coromant, “Internal channels are utilized to deliver coolant directly to the cutting edge, which is another factor that contributes to improved surface finish, higher penetration rates and greater process security.” The boring system handles fine boring applications with diameters from 19 to 167 mm and there is an assortment of cartridges available for back boring.

sandvik.coromant.com


Benchtop Video Comparators

New benchtop digital video comparators have been launched by the L.S. Starrett Co., the models HDV300 and HDV400. According to Mark Arenal, general manager of Starrett Kinemetric Engineering, “Our new generation HDV represents the next step in the evolution of the horizontal digital video measurement systems, dramatically increasing productivity through high-speed electronic comparator measurement.” For example, the axis speeds are 10 mm/sec on the Y-axis and 45 mm/sec for Z. The comparators feature a 21 x 5-inch top plate and 12 x 6 inches of travel. Field-of-view (FOV) measurements can encompass an entire small part up to 2.47 x 1.85 inches, or a feature of a larger part. And to measure larger parts in toto, FOV measurements can be seamlessly integrated with stage motion. The HDVs are available with 6:5:1 zoom optics. Optics mounting is based on a bayonet fitting so quick changes can be performed. The telecentric optics and zoom optics are mounted by means of a bayonet fitting and can be easily changed by the user in a matter of seconds. The bench top systems have a welded steel housing so they can be deployed on the shop floor. They feature, linear glass scales providing 0.00002" (0.5 µm) of resolution to read stage motion. Also notable is the software used that allows the HDV to import DXF CAD files and make 2D go/no-go comparisons through video edge detection.

starrett.com

 

Metalcutting Automation

Machine tool manufacturer Chiron has developed new automation for its FZ/DZ 16 series vertical machining center called the “Variocell Pallet.” A primary objective of this pallet is to allow different workpieces to be clamped in one of 10 pallets mounted on a rotary table. The pallet can be moved into the machining center work area with a transfer trolley that is equipped with driven rollers and that can be moved in three directions. Once in place, there is a handling system that moves each workpiece to the cutting zone and which removes the machined workpieces and the pallet after machining. Chiron has also developed an automation system for older machines, the Variocell Uno, which uses a workpiece handling robot and a workpiece storage unit that handles up to 24 pallets. This is a compact unit, requiring less than one square meter of floor space.

chiron-group.com