Beyond Drive from Kennametal comes in a range of grades and geometries. All feature a bronze TiOCN top coating that increases wear resistance and is an effective wear indicator.
With significantly longer tool life and improved edge utilization in field tests, Kennametal's newly launched Beyond Drive portfolio of cutting inserts are being called the new gold standard for turning. Adding a new titanium oxy-carbonitride outer coating (TiOCN) not only increases wear- and abrasion-resistance for lower temperatures and longer tool life, its bronze color is an effective wear indicator as opposed to black-surfaced inserts. Where inserts had been thrown away early in favor of safety because of poor wear identification, operators are now reporting notably longer service life per edge, even in aggressive environments. Depending on the application, field tests are showing up to 30 percent more parts per edge.
Beyond Drive is an entire portfolio of new grades and geometries that emphasize ease of selection and use across work materials and turning conditions. Specific customer demands addressed by Beyond Drive include reduction of notch wear in demanding applications and reduction of crater wear in difficult materials, all while improving wear identification.
Beyond Drive is specifically designed for leveraging improved performance and longer life in many critical turning tasks across steels, stainless steels, cast irons, and high-temperature alloys. By cutting costs, avoiding waste, and producing many more higher-quality parts per cutting edge, manufacturers in transportation, energy, general engineering, and more are taking a significant leap forward in productivity and increased capacity.
For example, the Beyond Drive MR (medium roughing) insert has a high positive rake angle that works with the smoothly curved cutting edge to reduce cutting forces and extend tool life. In terms of chip flow, it's like nothing ever seen before, says Kennametal turning expert Lothar Unglaub.
Indexable double sided inserts are subject to high cutting forces, and are commonly seen as less stable. MR's rake profile without the points of load concentration results in an extremely stable insert body, despite the high positive rake. Even with high depth-of-cut applications, turning processes are safer and more stable, ensuring lower load on the machine tool and workpiece. Additionally, MR inserts also feature formed-in coolant channels that deliver flood coolant efficiently to the cutting edge. Improved heat control translates into smoother cutting and extended tool life.
Adding the benefit of increased stability to Beyond Drive's design and performance advantages is Kennametal's KM4X spindle connection. Sizing the right spindle connection with the right machine tool helps optimize the productivity of the entire system. The combination of the KM4X system's high clamping force and interference level leads to a robust connection and extremely high stiffness and bending capacity for greatly improved performance. KM4X overcomes the limitation on bending capacity present in other connections, allowing maximum available spindle power and torque to be utilized in critical operations like turning of high-strength materials.
In short, the KM4X connection is capable of performing right up to the machine tool's full potential, which drives the most out of the cutting edge, Combined with the latest Beyond Drive portfolio, turning can be far more productive and cost-effective
Another advantage is running dry, where Beyond Drive performs very well. Coolants can cost a lot of money and add processing and disposal concerns. Even in very aggressive turning environments involving external scale or heavy, interrupted cuts, Beyond Drive is showing increased performance.
For example, in one test for a plant producing cast-iron transmission components, with no change in feed, spindle speed, or depth of cut, Beyond Drive completed 325 pieces per cutting edge compared to 200 pieces for the plant's current inserts. Not only was this a phenomenal increase in parts per edge, projected machine hours freed per year totaled 125 while the number of inserts required per year dropped from 813 to 500.
A stronger supply chain that gets more parts to market reliably is the foundation of a healthy and growing manufacturing industry. Beyond Drive is a truly exciting development that promises more higher-quality parts per shift, more efficient machine utilization, and longer tool life.
Related Glossary Terms
Substances having metallic properties and being composed of two or more chemical elements of which at least one is a metal.
- cast irons
Cast ferrous alloys containing carbon in excess of solubility in austenite that exists in the alloy at the eutectic temperature. Cast irons include gray cast iron, white cast iron, malleable cast iron and ductile, or nodular, cast iron. The word “cast” is often left out.
Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.
- depth of cut
depth of cut
Distance between the bottom of the cut and the uncut surface of the workpiece, measured in a direction at right angles to the machined surface of the workpiece.
Rate of change of position of the tool as a whole, relative to the workpiece while cutting.
Angle of inclination between the face of the cutting tool and the workpiece. If the face of the tool lies in a plane through the axis of the workpiece, the tool is said to have a neutral, or zero, rake. If the inclination of the tool face makes the cutting edge more acute than when the rake angle is zero, the rake is positive. If the inclination of the tool face makes the cutting edge less acute or more blunt than when the rake angle is zero, the rake is negative.
- stainless steels
Stainless steels possess high strength, heat resistance, excellent workability and erosion resistance. Four general classes have been developed to cover a range of mechanical and physical properties for particular applications. The four classes are: the austenitic types of the chromium-nickel-manganese 200 series and the chromium-nickel 300 series; the martensitic types of the chromium, hardenable 400 series; the chromium, nonhardenable 400-series ferritic types; and the precipitation-hardening type of chromium-nickel alloys with additional elements that are hardenable by solution treating and aging.
1. Ability of a material or part to resist elastic deflection. 2. The rate of stress with respect to strain; the greater the stress required to produce a given strain, the stiffer the material is said to be. See dynamic stiffness; static stiffness.
Workpiece is held in a chuck, mounted on a face plate or secured between centers and rotated while a cutting tool, normally a single-point tool, is fed into it along its periphery or across its end or face. Takes the form of straight turning (cutting along the periphery of the workpiece); taper turning (creating a taper); step turning (turning different-size diameters on the same work); chamfering (beveling an edge or shoulder); facing (cutting on an end); turning threads (usually external but can be internal); roughing (high-volume metal removal); and finishing (final light cuts). Performed on lathes, turning centers, chucking machines, automatic screw machines and similar machines.
- wear resistance
Ability of the tool to withstand stresses that cause it to wear during cutting; an attribute linked to alloy composition, base material, thermal conditions, type of tooling and operation and other variables.