The insert’s main cutting edge can machine a 90° wall surface. Additionally, the large R-wiper edge is adopted for achieving a good surface finish, while, the optimized “X-type” with 6 corners contributes to lower tool costs.
Discover excellent fracture resistance and high rigidity made possible via the thick (.354”/9mm) insert pocketed on 3 sides and secured with a large M5 screw offering robust clamping.
Utilizing CAE*, the main cutting edge design was developed with a twisted cutting edge and a convex rake angle resulting in an optimal shape that provides excellent chip formation and evacuation greatly suppressing the scattering of chips at the bottom and periphery surface of the tool leading to high wall accuracy, a superior surface finish and markedly improved efficiency.
*CAE : Computer Aided Engneering
Comments from Developer
The WWX400 was developed under the concept of “Stable and Worry-free” using an optimized insert shape with a maximum thickness of .354”/9mm in response to recent trends of unmanned operations and the demand for increased efficiency. The main attributes improved were rigidity and fracture resistance. Attention was also given to the cutting edge shape to achieve improved finished surface quality and good chip discharge. Be sure to experience the proprietary “X-type” insert developed by Mitsubishi Materials.
The conical shaped seating surface widely supports the insert surface area, while the arched insert support provides necessary clearance to suppress body damage from scratches and chip abrasion. Additionally, the strong clamping force of the M5 screws prevents loosening to provide robust clamping.
Although a double-sided insert type with an axial rake angle of 9°(close to that of a single-sided insert type) is used, the WWX400 insert achieves lower cutting resistance than a single-sided insert (MMC comparison) and suppresses chatter vibration when machining thin workpiece materials.
Increasing the insert thickness, while achieving seat-less clamping made it possible to incorporate a large number of teeth while maintaining large chip pockets to provide a variety of cutter options. A standard inventory is maintained consisting of 3 pitch types of both arbor and shank type cutters of same diameter.Fine pitch types in particular allow a high table feed and greatly improve efficiency.
Comments from Developer
The result of pursuing “worry-free” is our cutter body. The highly rigid arching insert support achieves a stable installed feeling by using a conical shaped seat and the M5 screws. This design allows for long use and is the answer to the dissatisfied customers who have experienced “when damage to the insert has also made the cutter body unusable.”
A fusion of the separate coating technologies; PVD and multi-layering provides extra toughness.
First recommendation for cast iron milling.MC5020 has excellent wear resistance and also controls thermal cracking and chipping that are common when machining ductile cast iron.
Black Super-smooth Coating
Black super-smooth coating prevents abnormal damage such as weld chipping.
WWX400 M class insert achieves the good surface finish as well as conventional G class product.
High stability is achieved without fracturing even at a feed of fz=.014 IPT.