That's right, NC software is smarter.NC programming software systems, offered either as stand-alone application systems or as a component in a full CAD/CAM CAD/CAM
in full computer-aided design/computer-aided manufacturing.
Integration of design and manufacturing into a system under direct control of digital computers. system, have traditionally been provided as a set of software tools to be fully utilized by the NC programmer. Knowledge, expertise, and decision-making capability have been totally associated with the programmer and have not been contained within the software or the CNC (Computerized Numerical Control) See numerical control.
CNC - Collaborative Networked Communication hardware.
According to according to
1. As stated or indicated by; on the authority of: according to historians.
2. In keeping with: according to instructions.
3. Alan Christman, vice president, CIMdata Inc, Ann Arbor Ann Arbor, city (1990 pop. 109,592), seat of Washtenaw co., S Mich., on the Huron River; inc. 1851. It is a research and educational center, with a large number of government and industrial research and development firms, many in high-technology fields such as , MI, that is changing, though there is some question about how quickly and to what extent so-called knowledge-based engineering Knowledge-based engineering (KBE) is a discipline with roots in computer-aided design (CAD) and knowledge-based systems but has several definitions and roles depending upon the context. (KBE KBE (in Britain) Knight (Commander of the Order) of the British Empire ) and one of its fundamental building blocks, generative gen·er·a·tive
1. Having the ability to originate, produce, or procreate.
2. Of or relating to the production of offspring.
pertaining to reproduction. machining, will be widely available. Here's his assessment of KBE progress:
Increasingly, leading software vendors are tailoring systems to solve specific engineering, manufacturing, and management problems. Languages and other software toolkits are readily available to develop these knowledge-based systems According to the Free On-line Dictionary of Computing (FOLDOC), a knowledge-based system is a program for extending and/or querying a knowledge base.
The Computer User High-Tech Dictionary defines a knowledge-based system . Using them, the knowledge of experienced users can be captured in a software system. Constraints, rules, and models are defined, and the application software is developed to automate an operation or to provide guidance to a user.
Until now this technology has been only minimally applied to NC programming software in production environments. However, the potential of adding "intelligence" to NC programming software is at hand with some NC vendors introducing KBE-oriented product capability and a number of user organizations developing their own application capability.
Knowledge-based engineering software contains information about objects, attributes, events, situations, and courses of action that emulate em·u·late
tr.v. em·u·lat·ed, em·u·lat·ing, em·u·lates
1. To strive to equal or excel, especially through imitation: an older pupil whose accomplishments and style I emulated.
2. the reasoning processes of human experts in a given field. As such KBE is a more encompassing term than generative machining. In addition to the input and output associated with generative machining, knowledge-based engineering may also encompass the entire tooling process including, fixturing, utilization of all machining resources, and costing. The results may be utilized to automate the process and/or to provide data for review by the programmer or operator.
Generative machining software automatically generates a machining process plan and the associated toolpaths to machine a part. Input to the system typically includes the machine tool characteristics, material of the part, the shape of the starting material, individual form-features, tolerances, and description of the final product. The generative machining codes produce the machining sequences, individual setups required, form-features to be machined in each setup, cutting tool description, feeds, speeds, depth of cut, and associated toolpaths. The system would flag a design that could not be machined with available equipment or a programmed sequence that could not performed for any reason.
Form-feature machining is typically used as a base building block for generative machining and KBE. In form-feature machining a library is developed that contains 1) the geometric definition of a series of form-features, and 2) an NC knowledge base built on experience to define the machining process used to create each form-feature. The NC part program used to cut each form-feature can be created from the information stored in the library.
Examples of form-features include through-holes, blind holes, slots, pockets, chamfers, fillets, rounds, and other features. User-defined form-features are also essential and should be part of any system. The capability should also be available to parameterize pa·ram·e·ter·ize also pa·ram·e·trize
tr.v. pa·ram·e·ter·ized also pa·ram·e·trized, pa·ram·e·ter·iz·ing also pa·ram·e·triz·ing, pa·ram·e·ter·iz·es also pa·ram·e·triz·es form-features. In a production environment, multiple form-features would be grouped into appropriate setups for machining. The information in this library could also be used to advise the product designer of manufacturing considerations when producing the base design.
How KBE works
KBE is generally used either to 1) automate relatively simple and repetitive operations, and/or 2) provide choices or guidance to the operator in more complex environments. In all cases an operator override An arrangement whereby commissions are made by sales managers based upon the sales made by their subordinate sales representatives. A term found in an agreement between a real estate agent and a property owner whereby the agent keeps the right to receive a commission for the sale of capability should be provided. Simple operations lend themselves to automated operation; the greatest return to the user would likely come from providing guidance in more complex environments. The highest priority areas for KBE implementation in terms of machining operations are 3-axis milling, 2.5 axis milling, turning, and holemaking, which account for as much as 75% of machining use.
One target for KBE-oriented NC is prototype production. In this environment frequent changes are made to a base model; there is likely to be similarity with other production parts; and the timeframe to complete tasks is usually very tight. KBE opportunities for either an automated or a guidance system are significant. KBE-based NC is also appropriate in production environments and in one-of-a-kind environments in which the product has considerable complexity.
Primary focus of KBE systems in the machining process are tooling and toolpath generation; within tooling, tool optimization optimization
Field of applied mathematics whose principles and methods are used to solve quantitative problems in disciplines including physics, biology, engineering, and economics. , preferred tooling, and tool selection functions. Users typically expect KBE technology to be provided by their CAD/CAM or NC supplier. Relatively few expect it to be provided by a KBE application vendor or a CNC hardware vendor. Also relatively few expect to fully develop the technology with their in-house staffs. Most users expect a vendor to provide a toolkit as opposed to a turnkey application system.
There is very strong support for data dependency A data dependency in computer science is a situation whereby computer instructions refer to the results of preceding instructions that have not yet been completed. This can also be known as a data hazard. Ignoring data dependencies can result in race conditions. software. In this environment the dependent data in machining can be immediately re-created when base design or process data are modified. Users overwhelmingly regard this as important. There is also substantial support for capturing non-machining attributes such as cost, schedule, resource availability, and the like to build a more complete knowledge-based system (artificial intelligence) knowledge-based system - (KBS) A program for extending and/or querying a knowledge base.
The related term expert system is normally used to refer to a highly domain-specific type of KBS used for a specialised purpose such as medical diagnosis. .
As with any new technological wrinkle Wrinkle
A feature of a new product or security intended to entice a buyer. there are a significant number of obstacles or concerns expressed with regard to implementing KBE in an NC environment. These include the extent key resources are required to implement a KBE application, the time required to implement, the availability of KBE technology, and the emotional concern that could be expressed by the NC programmer with regard to potential loss of control or their job. These obstacles are well understood by the user community. The upside Upside
The potential dollar amount by which the market or a stock could rise.
This is basically an educated guess on how high a stock could go in the near future.
See also: Bull, Downside is freeing them from routine programming to take on profitable new business.