>> QC-10® Mold Material QC-10® Mold Plate and Forged Block Specifically designed for production injection molds, QC-10 offers greater strength, stability, and durability than any other 7000 series aluminum mold alloy on the market. Its improved alloy composition provides outstanding through thickness strength and hardness while its quench insensitive microstructure allows provides minimal strength drop-ff and unequalled machinability. Consumer Electronics Application QC-10 is an excellent mold material choice for production tooling applications in numerous industries such as automotive, consumer electronics, and industrial products. QC-10 machines faster than steel and can be electrical discharge machined, polished, and textured. Compared to mold steel: >> 8-10 x faster machining >> 20-50% cycle time Faster Machining A high hard type of aluminum mold material, QC-10 machines 8-10 times faster than steel for rough milling. With high speed spindles, rough machining of QC10 can occur at cutting rates of 20,000 rpm and feeds of 0.325 mmpt Alcoa’s Signature Stress Relief cold work technology gives QC-10 consistent strength through the middle of block, differentiating it from other aluminum alloys. In one case, a mold maker was able to reduce mold manufacturing lead time by 40% due to the dramatic increase in roughing speeds over P20 steel. Faster Cycle Time Outstanding thermal conductivity is the key to faster cycle times. QC-10 conducts heat nearly 5 times faster that tool steel, reducing molding cycle times by 20-50%. Reduced cycle time increases productivity. Since QC-10 heats and cools more efficiently than tool steel, resins process more efficiently yield less warp concerns in the molded part. Lower Piece Price By offering reduced mold cycle time of 20-50%, QC-10 tooling has clear cost advantages for manufacturers. As much as 50% of the cost of an injection molded part is cycle time. Cutting cycle time increases production and decreases piece-price costs. One manufacturer has reported producing 5 days production rate in 4 days using QC-10, therefore opening up capacity to begin new jobs. Proven Durability Today many QC-10 molds have delivered in excess of 500,000 shots and in some cases approaching that ever important number of 1,000,000. Of course, proper maintenance routines must be fully adhered to assure a lifetime of reliable mold service. Nobody enjoys having to fix molds, but in case repairs are needed, Alcoa has developed a proprietary weld repair wire to match the chemical composition. Consult with an Alcoa Technician about repair techniques. www.alcoaconsumerelectronics.com Revision 2011.03 © 2011 Alcoa, all rights reserved reductions >> Up to 50% lower piece price >> Proven Durability >> QC-10® Mold Material Consumer Electronic Case Study: Product Description: LCD TV back cover Resin: High Impact Polystyrene Part Weight: 1.31 kg Quantity: 200,000 units Machining time Mold Part Cavity QC-10 P20, min Improvement 45 hours 54 hours 16% Core 30 hours 54 hours 44% Mold Material QC-10 P20 Improvement Cycle Time, seconds Product on per 11 hour shift 29 58 50% 1350 Pcs 680 Pcs 98.5% Mechanical Properties Strength Inches Strength Millimeters 1-6 50-150 KSI 70-74 MPA 483-510 Ultimate KSI 77-79 MPA 530-545 4-11 Elongation (%) Yield 8-12 14-18 150-300 300-450 72 500 77 530 8 68 470 74 510 6 YS, UTS, and elongation values at center (L/T direction) Physical Properties >20 >450 66 455 72 500 3 Parameter Thermal conductivity Coefficient of thermal expansion Modulus of elasticity Density Specific heat Hardness at center Units BTU/°F W/m-K 10-6/°F 10-6/°C psi GPA lb/in3 g/cm3 Btu/lb/°F J/g/°C Brinell 92 160 13.7 24.7 10.4E x 10 -4 70 0.103 2.85 0.210 .844 150-170 Availability QC-10 is available in select dimensions: Thickness 1”-6” (25-150mm) Width Length 36.5” (927mm)-100” (2540mm) 144” (3660 mm)-515” (13081mm) 7”-10” (178-250mm) 60.5” (1520mm) 144” (3660 mm) 12” (305mm) 60.5” (1520mm) 127” (3225 mm) 14” (355mm) 60.5” (1520mm) 109” (2768 mm) 16” (406mm) 60.5” (1520mm) 96” (2438 mm) 18” (457mm) 48” (1232mm) 100” (2540 mm) 20” (508mm) 48” (1232mm) 100” (2540 mm) Additional dimensions available. Please contact your Alcoa sales representative for details. About Alcoa Mold and Tooling Products Since 1987, Alcoa has been delivering outstanding mold products beginning with QC-7. Today, with QC-10, Alcoa is working jointly with mold makers and molders using a collaborative design approach to challenge conventional practices and provide innovative solutions that deliver greater value. Interested in opportunities presented by QC-10? Visit www.alcoaqc10.com www.alcoaconsumerelectronics.com Revision 2011.03 © 2011 Alcoa, all rights reserved Scan QR code to view all Alcoa Consumer Electronics products and offerings