Palo Alto Research Center Inc.

Sandvik Intellectual Property Ab

Tolga Kurtoglu

Saigopal Nelaturi

Arvind Rangarajan

Christian Fritz

Johan De Kleer

Rajinderjeet Singh Minhas

Linxia Liao

Gregory Burton

Walter Kim

Daniel Gureasko Bobrow

Ion Matei

Bhaskar Saha

William C Janssen

Tomonori Honda

Johan Dekleer

A Web-based system and method creates one or more qualitatively distinct process plans for machining a part. The surfaces of the part are modeled and parameters for a plurality of CNC machining tools are obtained, including the orientations along which the tool cuts away raw material. A maximal set of translations for each tool is also obtained, where each translation includes a collision-free orientation of the tool and a maximal machinable volume of material removable from the part in that orientation. A search engine navigates through a hierarchically-structured search space that starts at an initial state and transitions to successive states based on actions that satisfy a cost constraint function. Each state and each action includes a tool, orientation of the tool, and a maximal machinable volume. The search ends when a goal condition is satisfied. The actions constitute the process plan.

System and method for computer numerical control (CNC) tool without undercut features operations planning with the aid of a digital computer

A self-aware machine platform is implemented through analyzing operational data of machining tools to achieve machine tool damage assessment, prediction and planning in manufacturing shop floor. Machining processes are first identified by matching similar processes through an ICP algorithm. Machining processes are further clustered by Hotelling's T-squared statistics. Degradation of the machining tool is detected through a trend of the operational data within a cluster of machining processes by a monotonicity test, and the remaining useful life of the machining tool is predicted through a particle filter by extrapolating the trend under a first-order Markov process. In addition, process anomalies across machines are detected through a combination of outlier detection methods including SOMs, multivariate regression, and robust Mahalanobis distance. Warnings and recommendations are flexibly provided to manufacturing shop floor based on policy choice.

System and method for operational-data-based detection of anomaly of a machine tool

Automated fixture layout is approached in two distinct stages. First, the spatial locations of clamping points on the work piece are determined to ensure immobility of the fixtured part under any infinitesimal perturbation. Second, spatial locations are matched against a user-specified library of reconfigurable clamps to synthesize a valid fixture layout or configuration that includes clamps that are accessible and collision free. The spatial locations matching during the second stage can be the same spatial locations chosen in the first stage to ensure immobility, or a different set of spatial locations.

System and method for fixture configuration determination for part manufacturing with the aid of a digital computer

System and method for fixture form-closure determination for part manufacturing with the aid of a digital computer

System and method for detecting anomaly of a machine tool

Planning of computer numerical control (CNC) machining operations with the aid of a digital computer

A new and/or improved method, apparatus and/or system is disclosed which aids in extending correct behavioral models to include fault modes and in fault mode analysis of components and/or systems in simulated model environments, including, e.g., FMEA and FMECA and diagnostic fault tree generation.

Method for Modelica-based system fault analysis at the design stage

System and method for determining spatial locations of fixture element fixturing points on a part to be manufactured with the aid of a digital computer

System and method for locating clamping points for a part to be manufactured through computer numerical control (CNC) machining operations with the aid of a digital computer

Computer-implemented method and system for machine tool damage assessment, prediction, and planning in manufacturing shop floor

A system and a method automate metrology, measurement, and model correction of a three dimensional (3D) model for 3D printability. Slices of the 3D model are received or generated. The slices represent 2D solids of the 3D model to be printed in corresponding print layers. Medial axis transforms of the slices are calculated. The medial axis transforms represent the slices in terms of corresponding medial axes. A local feature size at any point along a boundary of the slices is determined as the shortest distance from the point to a corresponding medial axis.

Automated metrology and model correction for three dimensional (3D) printability

A system and a method visualize three dimensional (3D) printability of a 3D model. A 3D printing process of the 3D model is simulated to generate a layered 3D model describing the 3D model as printed. A visual rendering of the layered 3D model is generated, and the visual rendering of the layered 3D model is displayed on a display device.

System for visualizing a three dimensional (3D) model as printed from a 3D printer

A system and a method assess the three dimensional (3D) printability of a 3D model. Slices of the 3D model are received or generated. The slices represent two dimensional (2D) solids of the 3D model to be printed in corresponding print layers. Further, printing of the slices is simulated to identify corresponding printable slices.

Automated design and manufacturing feedback for three dimensional (3D) printability

Computer-implemented system and method for determining spatial locations of fixture element fixturing points on a part to be manufactured

A Web-based system and method uses a model of the manufacturing setup and knowledge of a designed part with arbitrary geometry to produce process plans in two successive stages. First, the part geometry is analyzed. A query of determining the maximal volume machinable from an oriented machining tool is transformed into determining the visibility of the part surface from the perspective of a hypothetical camera placed at the tip of the oriented machining tool. Second, a collection of the maximal machinable volumes over the set of all tool orientations is collected. Combinations of the maximal machinable volumes covering the entire difference between the raw stock and the desired part are evaluated for providing feedback on manufacturability and process plans. In a further embodiment, manufacturability is analyzed for tools and machines with arbitrary geometric complexity using high dimensional configuration space analysis.

Computer numerical control (CNC) machining tool and method for controlling a CNC machining tool

Growing community of inventors

San Jose, CA, United States of America

Tolga Kurtoglu