Honorable Mention Boom Foot
Joy Global Surface Mining Milwaukee, Wisconsin
Material: AISI 4320 (modified). Process: Nobake. Weight: 3,212 lbs. Dimensions: 50 x 36 x 17 in. Converted From: Fabrication.
• Converting to a casting resulted in a total weight reduction of 638 lbs. and a 57% reduction in cost, in addition to a lead time reduction of three weeks.
• Lightening the internal pocket area gave way to a weight reduction that allows for more mining mate- rial weight in the dipper, a strong sales point.
Valve Housing Brillion Iron Works, Brillion, Wisconsin
Material: Ductile iron. Process: Sand. Weight: 90.12 lbs. Dimensions: 7.5 x 9 x 11 in. Converted From: Two separate cast components.
• Combining two separate castings to one led to an estimated $1 million in savings and eliminated assembly costs, fasteners, seals and an assembly test for leakage, for this valve used in mobile hydraulics.
• A tighter core tolerance was achieved for the five-piece core assembly by assembling the core in a bucket, which also allows for less breakage in transport and storage.
June 2013 MODERN CASTING | 27
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60