Milling cutters Tough and multi-functional cutters by Mitsubishi Materials
Mitsubishi Materials has expanded its high-performance, indexable insert milling cutter range with the new VPX 200 and 300 series.
The metal-cutting industry today demands multi-functionality and overall toughness in new indexable milling cutters, which led Mitsubishi’s design team to pursue the tough machining characteristics of a tangential type cutter – the VPX. Arranging inserts tangentially allows the core of the cutter body to be larger than in a conventional, radially mounted type. This adds, the company says, overall rigidity and permits higher cutting loads without creating excessive tool deflection. Mitsubishi noted that during trials the VPX series, when compared with conventional type cutters, registered up to 25% higher feed rates when machining 42CrMo4 (1.7225) steel. Thus, higher levels of feed and speed can be realised so end users benefit by being able to use the tools’ multi-functionality on differing small job batches without changing tools and also utilise more efficient machining strategies on longer, unmanned, high-volume production runs.
According to Mitsubishi, the VPX series can be used for a wide range of milling functions, ranging from standard shoulder milling through to ramping and pocketing. The insert geometry provides the required toughness together with the ability of multifunctionality.
Most tangential insert cutters require a dedicated insert for ramping applications, but the top edge geometry of the insert used on VPX means that only 1 type is needed for all machining methods. This reduces stock of inserts for end users and also prevents potential costly installation mistakes. The inserts are double-sided and therefore saves cost further.
The VPX 200 and 300 series cutters are available in 2 different sizes to accommodate both large and smaller machines. The 200 series has 09 size inserts providing an 8mm maximum depth of cut, whilst the 300 has larger 12 size inserts, providing up to 11mm depth of cut.
At the AMB trade fair, Mitsubishi Materials will be in Hall 1, Booth C40.
This article was first published on www.etmm-online.com.