scholarly journals Engineering Meets Manufacturing

2007 ◽  
Vol 129 (12) ◽  
pp. 20-23
Author(s):  
Jean Thilmany

This article discusses the future of software that links engineering and manufacturing. Companies are seeking a natural link between engineering and manufacturing, even if some aspects of it may be restricted. According to experts, giving manufacturers direct access to that design information would help them isolate potential manufacturing problems earlier in the cycle, cut product development time by stepping up design-manufacturing communication, and ensure that products will comply with government regulations. The article also describes that by allowing for quick communication and updates to an already existing computer-aided design model, product lifecycle management (PLM) can help speed these products to market. Engineers are putting efforts to bring PLM information to the factory floor to cut production time. Though the day of easy integration has yet to arrive, many companies are using PLM to reduce cycle time. Pushing PLM to the factory floor would help, according to an engineer. However, that's not an option for many until integration software comes to the fore.

Author(s):  
Omar Msaaf ◽  
Roland Maranzana ◽  
Louis Rivest

Difficulty in locating existing information in order to reuse it constitutes a major challenge to productivity. The use of PLM systems (Product Lifecycle Management) aims in particular to reduce the time and cost of developing a product by facilitating the re-use of existing parts or related information (process plans, tools, FEM, estimates, etc.). When information is alphanumerical, using search engines, such as those made popular on the internet, is efficient. However, a significant portion of information used in engineering rests within CAD (Computer Aided Design) models, making such search tools irrelevant. To aid in the re-use of information, two problems must be resolved: it is first necessary to be able to locate similar parts in the electronic database of the company, and then be able to systematically identify their differences. This article presents some of the results from our work on part, product and process data mining (P3DM). It focuses on tools developed to search similar 3D geometric models and to identify their differences. The PartFinder application locates similar parts by comparing signatures extracted from their solid representations. The 3DComparator aims to identify the differences in terms of Form and Fit between the identified parts. In both cases, the recommended approach is independent of the CAD system, and can also deal with parts represented by IGES or STEP files. Moreover, the approach does not require that the parts occupy the same position and have the same orientation in space. These two points, CAD and position independence, are the main benefits of our approach compared to other existing applications. Lastly, if the comparison takes place between two evolutions of the same geometrical representation of a part, a third tool allows the comparison of the specification trees. The SpecComparator is also presented briefly. An example based on industrial data illustrates the benefit that could be generated.


Author(s):  
Victor B. Gerdes

Discrete manufacturing companies practicing distributed product development encounter challenges creating digital products, collaborating cross functionally in an organization and throughout the value chain, and controlling and managing product information and product development processes throughout the product’s lifecycle. This paper investigates the critical capabilities of a product development system for distributed product lifecycle management (PLM). A comprehensive product development system consisting of PTC’s Windchill PDMLink (control), Windchill ProjectLink (collaborate), and Pro/ENGINEER Wildfire (create - mechanical computer-aided design - MCAD) is presented in this paper with use cases and examples as a software solution for enabling distributed collaborative product development.


Aerospace ◽  
2019 ◽  
Vol 6 (4) ◽  
pp. 41
Author(s):  
Angelo Corallo ◽  
Manuela Marra ◽  
Claudio Pascarelli

In manufacturing companies, computer-aided design (CAD)/computer-aided manufacturing (CAM) feature-based approaches have been developed for faster numerical control (NC) programming. They allow to automatically generate toolpath, recognizing both standard and custom machining features, and defining for each of them the best or preferred machining process based on predefined rules. The definition of Feature Based Manufacturing (FBM) rules requires advanced competences and skills; furthermore, the standardization required by these instruments is too rigorous for real machining practices. It is therefore necessary to extend the Product Lifecycle Management (PLM) environment in order to be able to make explicit and manage manufacturing rules based on industrial best practice. The paper addresses these problems presenting a possible solution to optimize FBM information management and integration within the product lifecycle. A data model extension, covering new items such as “manufacturing rules” and “tool setting preferences”, and a new methodology for rules management and deployment are proposed.


2003 ◽  
Vol 125 (01) ◽  
pp. 44-46 ◽  
Author(s):  
Jean Thilmany

This article focuses on how acronyms serve a useful purpose to people in a certain industry because they know right away what area is being referred to without having to go into a long, elaborate explanation. For the record, CAD stands for “computer-aided design,” CAM for “computer-aided manufacturing,” and PLM for “product lifecycle management,” which are all software applications used by engineers. Acronyms that are bandied about without ever being defined can make all but seasoned veterans feel as if they are in a subject over their heads. Manufacturers have an ongoing task of sorting through acronyms and finding those that have meanings for them, as opposed to those that are merely flavors of the day and will ultimately fall by the wayside.


2006 ◽  
Vol 12 (2) ◽  
pp. 91-98 ◽  
Author(s):  
Vladimir Popov ◽  
Saulius Mikalauskas ◽  
Darius Migilinskas ◽  
Povilas Vainiūnas

With the growth of information technologies in the field of construction industry, the concept of CAD (Computer Aided Design), which denotes just design operations using a computer acquires a new meaning and changes the contents lightening design process based on product modelling and further numerical simulation construction process and facility managing. New definitions as Building Information Modelling (BIM) and Product Lifecycle Management (PLM) are more and more usable as the definition of a new way approaching the design and documentation managing of building projects. The presented computer aided design technology based on the concept of graphical ‐ information modeling of a building, is combined with resource demand calculations, comparison of alternatives and determination of duration of all the stages of investment project life. The software based on this combined 4D PLM model is to be created as a means to manage effectively the investment project, starting from planning, designing, economical calculations, construction and afterwards to manage the finished building and to utilize it.


2012 ◽  
Vol 134 (02) ◽  
pp. 30-31
Author(s):  
Jean Thilmany

This article discusses implementation of a new product lifecycle management (PLM) system at Parker Hannifin Corp.’s aerospace group. This group employs 6100 across its 18 design centers located around the world, where engineers create parts for commercial aircraft, including helicopters, and many military aircrafts. Managers within the Parker Hannifin aerospace group had been tracking digital documents with a document-management system since the early 1990s. The group recently upgraded its PLM system and is working on supplier access to design documents stored within the system. The new PLM system was rolled out in 2008. The Enovia MatrixOne system is from the same vendor that supplies the company’s main computer-aided design system, which is Catia from Dassault Systèmes of Paris. Regardless of how that project plays out, Parker Hannifin is now miles ahead of where it was only a few years ago when it comes to managing design documents and related data. The smoothing of any chinks among suppliers and in maintaining legacy information has all been worth the upgrade.


Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1469 ◽  
Author(s):  
Alvaro Camarillo ◽  
José Ríos ◽  
Klaus-Dieter Althoff

Fault diagnosis presents a considerable difficulty to human operators in supervisory control of manufacturing systems. Implementing Internet of Things (IoT) technologies in existing manufacturing facilities implies an investment, since it requires upgrading them with sensors, connectivity capabilities, and IoT software platforms. Aligned with the technological vision of Industry 4.0 and based on currently existing information databases in the industry, this work proposes a lower-investment alternative solution for fault diagnosis and problem solving. This paper presents the details of the information and communication models of an application prototype oriented to production. It aims at assisting shop-floor actors during a Manufacturing Problem Solving (MPS) process. It captures and shares knowledge, taking existing Process Failure Mode and Effect Analysis (PFMEA) documents as an initial source of information related to potential manufacturing problems. It uses a Product Lifecycle Management (PLM) system as source of manufacturing context information related to the problems under investigation and integrates Case-Based Reasoning (CBR) technology to provide information about similar manufacturing problems.


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