affordable deployment of products from concept to disposal. It represents a fundamental shift from 2D to 3D or from physi- cal drawings to virtual models.
Maintaining The Digital Thread Reverse Engineering—The digital thread of a product begins in Reverse Engineering physical parts to CAD. This has become increasingly prevalent in design and engineering workfl ow today as features from legacy parts without available CAD data, or organic or other complex surface profi les are incorporated into current designs. Though reverse engineering applications can differ vastly they all have one thing in common: the need to capture highly accurate surface points and reverse engineer them back into 3D CAD models for manufacturing and inspection. Reverse engineering requires a specialized skill-set and comprehensive understanding of dimensional metrology. Part Validation—As the part moves through the tradi- tional CAD, CAE and CAM process the digital thread remains intact. Once a prototype or fi rst article part is completed the digital thread must be extended to include part validation. That is to compare and analyze the actual physical part to
Metrology, also known as Measurement Science. Case in point: typically tier one aerospace companies do not train suppliers in Dimensional Metrology, however, they do hold vendors account- able for its effective implementation and utilization. New meth- odologies, concepts and skill sets must be learned and applied. Measurement Science is both art and science blended with core skills as computing power and advanced devices continue to increase the throughput speed of productivity. Many educational institutions with industrial technology
programs incorporate three of four major components— De- sign, Engineering and Machine Tool. However, Quality As- surance and Quality Control with emphasis on Measurement Science (aka, Dimensional Metrology) often have not been included or expanded suffi ciently to complete the educational loop for industrial technology.
Demand is high. Educational opportunities are limited and technical abilities are demanding. Manufacturer’s today call for greater educational opportunities to supply them with skilled technicians. To close the digital loop, increased techni- cal education programs are encouraged to close the skills gap manufacturers experience on a daily basis.
The new Digital Thread in advanced manufacturing now incorporates inspection, measurement and verifi cation, requiring skilled workers.
the digital CAD Model. This is the task of Dimensional Metrol- ogy inspectors conducting quality assurance roles. Specialized skill-sets are required for quality control and quality assurance measurement and inspection tasks incor- porating phases of AS9100 and ISO9000. These skill-sets dovetail with technical abilities to operate three-, fi ve-, six- and seven-axis Coordinate Measurement Systems (CMMs). Conformance and related documentation with open commu- nication for technical coordination enable the processes to fl ow smoothly along the digital thread to product acceptance. The Dimensional Metrology skill-gap is one of the many in
today’s manufacturing environment. When referring to Boe- ing’s D6-51991 specifi cation found on-line, the term MBD is a subset to Boeing’s DPD—Digital Product Defi nition—which is required by all suppliers in the Boeing supply chain. This same methodology may apply to multiple industries, aerospace, automotive, energy, marine and medical to name a few. Closing the Skills Gap—There is a clear and present need to educate and train both at the company and individual level, concepts, processes and tools associated with Dimensional
The need for local and regional programs providing Model Based Defi nition inspection and measurement is urgent and continuous. There is a rising demand for a skilled workforce from OEMs and lower tier suppliers. In response, Verisurf Soft- ware has entered into collaborative agreements with educational institutions, providing curriculum and equipment for instructor- led classroom based lab and lecture coursework with hands-on how-to methodologies, on-line training with certifi cation cours- es, classroom training aids and MBD software to strengthen the fundamental skill sets for today’s manufactures. Verisurf offers dedicated resources to work directly with teaching institutions, helping them to develop and implement successful Dimensional Metrology/Measurement Science course offerings. For more information visit
www.verisurf.com.
Ray Elledge Director of Education Verisurf Software Inc.
June 2016 |
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