In this webinar, Kennametal experts Danny Davis and Steve George share machining best practices and solutions for demanding aerospace and general engineering applications.
1:32 - What do we mean by kellering? 2:42 - History behind kellering 4:21 - Surface finish: Cusp Height, Stepover & Radius 6:50 - 3D model demonstration 8:19 - The importance of radial & axial chip thinning 11:51 - Forward tilt on a ball nose end mill 19:29 - What can we do to get an acceptable cusp height but take bigger stepovers? 21:41 - Using a corner radius tool 25:43 - Is it also effective to tilt on Swiss machines with live tools using a ball nose when machining the sphere on the face of a part? 26:50 - High feed forces (KenFeed & 7792) 29:37 - Advantage of radius when kellering / how changing shape will affect it 34:38 - Flexion of the tool 36:08 - Equation for cusp height based on the end radius of the tool and stepover . If H is your desired cusp height, R is the radius of your end face, and of course ae is your stepover, then H = R - SQRT(R^2 - (ae/2)^2) 36:48 - Question: Would an indexable high feed mill be applicable for CNC machines that have multiple strokes on one machined part? 39:12 - How to program these high feed cutters 40:55 - Application example 43:37 - YouTube Question: Is it possible to talk (and show) a bit more about how you measure the temperature, tool load, all that. Do big machine shops do that type of measurement in-house to improve the productivity or do they usually ask you to go there and help out? 53:47 - Increasing spindle speed with a lower radial depth-of-cut / lower engagement angle 57:12 - Heat flux
In this webinar, Kennametal experts Danny Davis and Steve George share machining best practices and solutions for demanding aerospace and general engineering applications. They continue the discussion on chip thinning, kellering and high feed milling. You can use these tips to achieve higher material removal rates, better finishes and faster cycle times.
Previously Featured on Kennametal's YouTube channel.
Kennametal brings together materials science, technical expertise, innovation and superior customer service to help the world fly, drive, power and build. Our tools, materials and wear-resistant solutions enable customers to run longer, cut faster and machine with greater precision across various industries from aerospace and defense, general engineering and transportation, to earthworks and energy. We don’t just make products, we deliver solutions.
