Generating optimized tool paths and machine commands for beam cutting tools

Patent metadata

Field	Value
Publication number	US-9720399-B2
Application number	US-201414333469-A
Country	US
Kind code	B2
Filing date	Jul 16, 2014
Priority date	Jan 22, 2014
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

A facility for automated modelling of the cutting process for a particular material to be cut by a beam cutting tool, such as a waterjet cutting system, from empirical data to predict aspects of the waterjet's effect on the workpiece across a range of material thicknesses, across a range of cutting geometries, and across a range of cutting quality levels, all of which may be broader than, and independent of the actual requirements for a target workpiece, is described.

First claim

We claim:

1. A computer-readable medium not constituting transitory propagating signals per se, whose contents are adapted to cause a computing system to perform a method for selecting cutting test observations, the method comprising:
receiving a request identifying a material;
accessing a cutting test repository containing information about each of a plurality of performed cutting tests, the repository containing, for each of the plurality of cutting tests, (1) information identifying a material used in each of the plurality of cutting tests, and (2) information specifying a measurement produced by the cutting test;
based on the material identified by the request and the information contained by the cutting test repository identifying the material used in each of the plurality of cutting tests, selecting a proper subset of the plurality of cutting teats in response to the request,
wherein the identification of a material by both the request and by the information in the repository is at least in part by specifying a material machinability index value, and wherein the selecting process selects cutting tests whose material machinability index values are within a certain range of the machinability index value of the material identified by the request; and
causing cutting of a part based at least in part on the information identifying a material and the information specifying a measurement of the selected subset of the plurality of cutting tests.

2. The computer-readable medium of claim 1 further comprising storing the selected subset of the plurality of cutting tests on behalf of the requester.

3. The computer-readable medium of claim 1 wherein the received request was sent on behalf of a requester, the method further comprising transmitting to the requester at least a portion of the information contained by the repository for each of the selected cutting tests.

4. The computer-readable medium of claim 3 , the method further comprising causing the requester to be charged for the transmitted information.

5. The computer-readable medium of claim 3 , the method further comprising causing the requester to be charged for use of the transmitted information.

6. The computer-readable medium of claim 1 , the method further comprising causing a cutting model to be constructed based on the selected cutting tests.

7. The computer-readable medium of claim 1 wherein the received request has a source, the method further comprising causing the source to be charged for construction of the cutting model.

8. The computer-readable medium of claim 1 wherein the received request has a source, the method further comprising transmitting the cutting model to the source.

9. The computer-readable medium of claim 1 wherein the selecting process selects cutting tests whose identified materials are each the same as the material identified by the request.

10. The computer-readable medium of claim 1 wherein the selecting process selects cutting tests whose identified materials are each in a class of materials containing the material identified by the request.

11. The computer-readable medium of claim 1 wherein the repository further contains, for each of the plurality of cutting tests, (3) information identifying an entity who performed the cutting test, and wherein the selecting process selects cutting tests at least in part based on the entities identified as performing them.

12. The computer-readable medium of claim 11 ,
further comprising identifying a problem with at least one cutting test result provided by a distinguished entity,
and wherein the selecting process is less likely to select cutting tests identified as being performed by the distinguished entity.

13. The computer-readable medium of claim 1 wherein the repository further contains, for each of the plurality of cutting tests, (3) information identifying an entity who performed the cutting test, and (4) an authoritativeness score for the cutting test,
and wherein the method further comprises determining the authoritativeness score for a first cutting test performed by a distinguished entity based on an evaluation of the measurement of a second cutting test also performed by the distinguished entity, the second cutting test being distinct from the first cutting test.

14. The computer-readable medium of claim 1 wherein the repository further contains, for each of the plurality of cutting tests, (3) an authoritativeness score for the cutting test, and wherein the selecting selects process cutting tests at least in part based on their authoritativeness scores.

15. The computer-readable medium of claim 1 wherein the repository further contains, for each of the plurality of cutting tests, (3) an authoritativeness score for the cutting test, the method further comprising causing a cutting model to be constructed based on the selected cutting tests in such a way that the cutting model reflects the selected cutting tests to varying degrees that correspond to their authoritativeness scores.

16. The computer-readable medium of claim 1 wherein a first request is received from a first entity and a second request is received from a second entity distinct from the first entity,
and wherein the accessing and selecting are performed for the first request and for the second request.

17. A method in a computing system for selectively providing waterjet cutting test observations, the method comprising:
receiving first information identifying a material to be cut in the project;
receiving second information identifying at least one configuration parameter for a waterjet cutting machine to be employed in the project;
accessing a multiplicity of waterjet cutting test observations, each observation identifying (a) a material cut in a waterjet cutting test, (b) at least one machine configuration parameter employed in the waterjet cutting test, and (c) a result obtained from the waterjet cutting test;
wherein the identification of a material in both the first information and in the test observations is at least in part by specifying a material machinability index value;
selecting a proper subset of the plurality of waterjet cutting test observations whose material machinability index values are within a certain range of the machinability index value of the material identified in the first information;
transmitting the selected waterjet cutting test observations in response to the received first and second information; and
causing cutting of a part based at least in part on the selected subset of the plurality of waterjet cutting test observations.

18. The method of claim 17 wherein the first and second information is received from a customer, and wherein the selected waterjet cutting test observations are transmitted to the customer, the method further comprising causing the customer to be charged in connection with transmitting the selected waterjet cutting test observations to the customer.

19. The method of claim 17 wherein the transmitted selected waterjet cutting test observations include a first observation and a second observation, the method further comprising, before receiving the first and second information:
receiving the first observation from a first source;
receiving the second observation from a second source distinct from the first source; and
storing the received first and second observations among the accessed multiplicity of waterjet cutting test observations.

20. A method in a computing system for selecting cutting test observations, the method comprising:
recei

Assignees

• Omax Corp

Inventors

• Henning Axel H
• O'Connor James M

Classifications

• G06F30/20

  Design optimisation, verification or simulation (optimisation, verification or simulation of circuit designs G06F30/30) · CPC title

• G05B2219/45036

  Waterjet cutting · CPC title

• B24C1/045

  for cutting (energy dissipating devices therefor B26F3/008) · CPC title

• G05B19/4097 Primary

  characterised by using design data to control NC machines, e.g. CAD/CAM (G05B19/4093 takes precedence) · CPC title

• G05B19/4145

  characterised by using same processor to execute programmable controller and numerical controller function [CNC] and PC controlled NC [PCNC] · CPC title