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TECH FRONT


but tubing connections are an issue in many other appli- cations in the military, aerospace, marine and machinery industries (TP67PUB153).


“Automatic inspection of manufactured materials is no longer a dream or ideal of cost conscious management, but is in fact a reality. It is also apparent that the human eye and brain is not as consistent or reliable as what we would like to see reflected in our final product quality,” stated the author of TP70PUB7. Several applications of electro-optical techniques for in-process inspection are described, includ- ing the unique capabilities of scanning electron microscopes, rotating mirrors and fiber optic bundles. Other papers detail automated optical inspection of small bore surfaces in an automotive brake system valve body (TP72PUB128), inspec- tion and sorting of precision springs (TP79PUB125) and automatic optical inspection of printed circuit boards before solder (TP87PUB487).


Call It Machine Vision Electro-optical sensing for part inspection was well es- tablished by the time the term “machine vision” was heavily publicized as a crucial contribution to robotics. As explained in TP82PUB185, most inspection applications require high- resolution sensors relative to existing gages or visual inspec- tors, while robot guidance for simple tasks needs consider- ably lower resolution. A robust, flexible optical feature extractor system for machine vision high-speed inspection applications is sum- marized in TP87PUB167, and TP89PUB313 describes the application of machine vision in the form of three identical laser gaging systems in a flexible manufacturing cell. Papers dealing with many techniques for inspection were


presented at SME events such as Vision, Precision Metrol- ogy with CMMs, MicroManufacturing and North American Hydroforming. Topics include selection and application of noncontact optical probes on coordinate measuring ma- chines (CMMs) in TP99PUB152, processing of micromold cavity flow images with a transparent mold and high-speed camera system (TP07PUB140) and digitizing and analyzing the dimensional, forming and material property aspects of metal sheet parts and tools (TP08PUB22). TechFront is edited by Senior Editors Patrick Waurzyniak, pwaurzyniak@sme.org, and Ellen Kehoe, ekehoe@sme.org.


SME Technical Papers (coded as TP…PUB…) and search options for the collection are available at http://tinyurl.com/SearchTPs.


January 2015 | AdvancedManufacturing.org 41


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