MACHINING: TOP VALUE-ADDED SERVICE 48.2%
Aluminum remains the dominant
material, with 814 facilities (48.2% of
respondents) pouring some type of aluminum alloy.
machining (52.3%; 74.4%). Heat treatment, patternmaking and engi- neering and design all totaled more than 700 responses. T e vast majority of facilities
off ering value-added services reported multiple methods, with 1,144 of 1,688 (67.8%) off ering at least two. Sixty metalcasters reported off ering all 10 of the survey’s value-added services. Prototyping (314) and coating (246) were the least popular services, though both increased in availability by more than 10% compared to 2013.
Coremaking Methods
Leader: Shell Last Place: Cast-in Inserts A little more than half of the
participating facilities (889) reported using some method of coremaking. Shell and air-set/nobake coremaking were the top two responses, with 601 and 565 facilities reportedly using the methods, respectively. T e least popu- lar methods were hotbox/warmbox (99 facilities) and cast-in inserts (28). Nearly 73% of responding facilities
use more than one method for core- making, with 241 locations using just a single method. T e combination of shell and air-set/nobake was the most common tandem, with 426 facilities reportedly using both methods, while 316 responses included both shell and green sand methods.
Total Number of U.S. Plants Prototyping (24) and coating (29) saw the biggest increases in facilities in the past year.
SHELL COREMAKING: TOP PROCESS
Ceramic coremaking, up just one facility, is the only process to gain in comparison to the 2014 survey. Total Number of U.S. Plants
January 2016 MODERN CASTING | 37
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