Method for generating a machining program of a plunge mulling machine tool, comprising the steps of: establishing a machining to be performed on a workpiece; acquiring first machining information that indicates stable cut conditions of the machine tool for the workpiece; acquiring second machining information that indicates engagement cut conditions of the machine tool during the machining on the workpiece; carrying out a determination of the rotation speeds of the machine tool during the machining on the basis of the second machining information and the first machining information; wherein the machining program is generated on the basis of the determination carried out.

A method implemented by a computer system, the computer-implemented method comprising receiving dimensions of a building surface, including a surface length and a surface height; receiving dimensions of a surface material unit, including a material length and a material height; receiving design parameters defining a three-dimensional design over the building surface; partitioning the three-dimensional design into a plurality of three-dimensional segments based on both the three-dimensional design and the dimensions of the surface material; and generating a set of milling instructions for cutting a plurality of surface material units into the plurality of three-dimensional segments.

A computerized method of machining a workpiece including, prior to machining the workpiece, establishing, based on empirical data obtained from machining activity at an earlier time, an historical mapping indicating pairings of depth of cut and rpm at which undesirable chatter (UDC) did not occur during machining activity at an earlier time using at least one given type of milling machine, at least one given type of cutting tool and at least one given type of workpiece material, prior to commencing machining of the workpiece, programming a machine tool to machine the workpiece using a given type of milling machine, a given type of cutting tool and a given type of workpiece material at at least one depth of cut and rpm, which, based on the historical mapping, avoid UDC and operating the machine tool in accordance with the programming to machine the workpiece.

Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design of physical structures include: obtaining a density-based representation of a modeled object and data specifying a starting element for each of multiple different subsets of elements; processing starting elements having milling depths associated with layers below a top most layer, the processing including, for a current starting element for a current layer, identifying other starting elements that have milling depths associated with a layer above the current layer and are closer to the current starting element than an amount at least equal to a radius of a smallest available milling tool, calculating a maximum angular difference, and moving the milling depth for the element subset of the current starting element to a layer above the current layer, responsive to the maximum angular difference being greater than a threshold, to remove a non-manufacturable corner.

A method for numerical control milling, forming and polishing of a large-diameter aspheric lens to solve the problems of long time-consuming and severe tool wear in the machining of a meter-scale large-diameter aspheric surface is disclosed. An aspheric surface is discretized into a series of rings with different radii, and the rings are sequentially machined through generating cutting by using an annular grinding wheel tool; the rings are equally spaced, there are a total of N rings, and the width of any ring is jointly determined by the N.sup.th ring, the (N−1).sup.th ring, positioning accuracy, and a generatrix equation of the aspheric lens, and the n.sup.th ring has a curvature radius of Rn=sqrt(R0.sup.2−k*(n*dx).sup.2); and the aspheric surface is enveloped by a large number of rings.

A method for predicting a remaining life of a tool of a computer numerical control machine is provided. In the method, indirect measurement indicators of the tool are selected based on monitoring and analyzing a current state of the tool, a prediction model for the remaining life of the tool is established based on data de-noising, feature extraction and a multi-kernel W-LSSVM algorithm. Thereby, a method for predicting a remaining life of a tool of a computer numerical control machine is provided.

An intelligent switching system for switching internal cooling and external cooling and a method are provided. The system includes a vision system, a cooling system and a control system. The vision system monitors a real-time milling state of a cutter, collects a real-time milling depth image that the cutter mills a workpiece, and transmits the collected real-time milling depth image to the control system. The control system includes a lubrication mode control center, and a motor control center. The lubrication mode control center receives the real-time image transmitted by the image collection control center; analyzes and processes the real-time image to obtain real-time milling depth data of the cutter. The motor control center receives a signal sent by the lubrication mode control center; analyzes and processes the signal, and transmits a control instruction to the cooling system. The cooling system executes a switching command issued by the control system.

The present invention relates to a method for parallelized simulation of the movement of a machine component in or near a work object, wherein: a planned trajectory of the machine component is divided into several trajectory portions; a simulation of at least a first trajectory portion and a second trajectory portion is performed at least partly in parallel yielding simulation results, wherein the simulation comprises determining incidents, preferably collisions, along the trajectory portions; at least the simulation results of the first trajectory portion and the second trajectory portion are merged yielding a merged simulation result; and the merged simulation result is outputted.

Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design of physical structures include: obtaining a density-based representation of a modeled object and data specifying a starting element for each of multiple different subsets of elements; processing starting elements having milling depths associated with layers below a top most layer, the processing including, for a current starting element for a current layer, identifying other starting elements that have milling depths associated with a layer above the current layer and are closer to the current starting element than an amount at least equal to a radius of a smallest available milling tool, calculating a maximum angular difference, and moving the milling depth for the element subset of the current starting element to a layer above the current layer, responsive to the maximum angular difference being greater than a threshold, to remove a non-manufacturable corner.

Disclosed herein are methods of manufacturing a dental device, the method comprising: obtaining a set of clinical options for the dental device from a health care provider; creating a first data set from the set of clinical options; communicating the data set to a computer aided design (CAD) software; preparing a digital design for the dental device using the CAD software; communicating the digital design to an automated milling apparatus; and automatedly milling a block of polymer to obtain the dental device. Also disclosed are dental devices manufactured by the above method. Further disclosed are methods of treating or ameliorating apnea jaw-related disorder in a patient, the method comprising obtaining a dental device manufactured by the above method and positioning the dental device over the dentition prior to sleep, whereby the mandible is advanced forward relative to the maxilla, thereby ameliorating the symptoms of sleep apnea or the jaw-related disorder.