NC programming with features
Standardisation and automation are two examples of how feature technology is used. Geometry information from the CAD model is used automatically for CAM programming and can be accessed at any time as standard.
Many components are composed of the following basic features: holes, pockets and islands. When considering the large number of holes that a component can have, it quickly becomes clear that it would not only be tedious and exhausting for the CAM user if they had to program each individual hole laboriously by hand but it would also increase the likelihood of errors. Moreover, valuable working time would also be wasted. This time could be better spent on more complex programming tasks.
This is where the feature technology of hyperMILL® comes into play as it makes it possible to comprehensively describe the constructive properties of a model such as pockets or holes. This gives the components a degree of intelligence. Feature technology is the first step towards a powerful form of variant construction.
Feature-based machining speeds up and simplifies NC programming by using automated programming sequences. Automated functions support CAM programmers in their day-to-day work and bring significant time savings. Further advantages of feature technology include a higher quality thanks to the reduction of errors as well as comprehensive standardisation by means of accessing best-practice procedures.
Features and information relevant to manufacturing
The hyperMILL® CAM software automatically recognises the majority of prismatic features such as pockets, holes or T-slots. Usable features for blade and impeller machining can also be easily created for a macro application. hyperMILL® offers numerous ways to process the geometry information available in the CAD system effectively within CAM programming. Along with the assigned geometries, features also contain information that is relevant to manufacturing, such as top, bottom, orientation and start point.
Once features have been defined, they can be assigned machining strategies. If the geometry or technology parameters are modified, changes only have to be made for the feature. These changes are then automatically incorporated in the recalculated NC code. This is another way in which feature technology in hyperMILL® significantly reduces the amount of programming required.
But that’s not all: So-called Customised Process Features (CPFs) are also available for individual solutions. They allow company standards to be defined for similar geometries and therefore help to automate the programming process even more. Workflows are established, saved as technology macros and can then be applied again to similar machining tasks. The basis for this: Characteristic geometries are linked with freely definable sequences of various machining strategies, from 2.5D and 3D through to 5-axis milling and mill turning.
Automatic feature recognition
Detection of geometries, creation of boundaries, leading curves and profiles, as well as grouping of surfaces and holes
Automatic pocket recognition, even for pockets without bottoms
Generic holes as through holes or blind holes with all machining properties
Automatic recognition of T-slots with all relevant information
Recognition of features from solids and surface models
Transparent display of different features or machining sides
Turbine Blade features
Simple definition and use of turbine blade features for applying macros
Simple definition and use of impeller features for applying macros