systems and practices.
• Entering into a non-disclosure agreement and proceeding with an RFQ on a limited number of parts.
• Selecting a supplier based on audit, business, capabilities and cost performance. With Christie manufacturing loca-
tions in both Canada and China, geo- graphic limitations rarely present prob- lems. Parts are sourced from a number of manufacturers across the globe. Also, considering the limited size of many castings, shipping costs are a consider- ation but rarely the determining factor. (In such cases, larger parts typically will be sourced more locally.) To maintain standards with its suppliers (casting and otherwise), Christie has a proprietary auditing program with extensive questioning and scoring mechanisms for evaluat- ing and rating suppliers. “Suppliers are audited through ques-
tions for current and historical perfor- mance in commercial stature, financial standing, growth, capital investments, customer base, document and order process control as well as quality and design procedures with practical evidence,” said Steward. “Engineering and design capabilities and third-party information also are obtained and reviewed in the evaluation.” New product turnaround time
and production lead times play a critical role in meeting project launch dates and ongoing inventory cycles. Considering these revolving deadlines, Christie has developed its own rapid prototyping division, known as Hyphen. Established in 2000 and officially opened to the public in October 2012, Hyphen offers a number of prototyping services, including stereolithography (SLA), CNC machining and selec- tive laser sintering (SLS). Christie officials expect castings
to continue to play a vital role in the development of projector technology. Casting capabilities and materials continue to improve, including further weight reduction and improved per- formance, meaning the company will continue to provide an example of how cast metal components can play a vital role in producing big results.
Some applications require smaller, more intricate castings that are usually diecast. ALUMIN UM ME L TE RS!
-25 “Hg, S.G.: 2.47
-26 “Hg, S.G.: 2.36
QCD-1 Porosity Measurement System
• Automatic measurement and recording of Specific Gravity / Sample Porosity in 15 seconds.
• Eliminates the need to cut and polish the sample to permit a very subjective estimation of gas level.
T.R.P. Vacuum Tester (True Reduced Pressure)
• Measures the absolute vacuum level, eliminating the need for daily/weekly/monthly calibration of the differential gage used on most RPT units.
• Fully automatic operation to pull the Absolute Vacuum to a target level of (+/- 0.20”Hg), run a timed cycle, and dump the vacuum.
Contact Us Today to learn more! E-mail:
dan@qcdesignsinc.com •
www.qcdesignsinc.com
Q.C. Designs, Inc. (269) 983-6859 • Fax: (269) 982-0823
February 2015 MODERN CASTING | 31
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