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golf_club - Carpenter Technology Inc Liquidmetal...

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Carpenter Technology, Inc. Carpenter Technology, Inc. Liquidmetal Technologies Liquidmetal Technologies
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AerMet custom 465 17Cr-4Ni Ti-6Al-4V Ti-6Al-4V [aged ******************************************************************************* UTS 2083 1795 1365 895 1140 YS[EL] 1780 1655 1260 830 1035 %El 14 13 15 10 10 %RA 64 58 52 25 20 KIc 109 83 61 77 39 d 7889 7833 7806 4429 4429 E 192.5 198.6 196.5 110.3 113.8 UTS/d 26.9 23.3 17.8 20.7 26.2 HRC 54 51 44 30 40
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The World According to Carpenter Tech…. The World According to Carpenter Tech…. “High-strength face insert materials are key to improving performance of golf club woods and irons because they permit the design of heads that are lighter, larger, and offer greater energy transfer greater energy transfer .” The issue to be considered is: What function is to be accomplished by hitting a stationary ball with a golf club? What is required for that function to be performed?
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The World According to Carpenter Tech…. The World According to Carpenter Tech…. “Assuming that the distance a golf ball is driven relates to the hardness and tensile strength of the face insert, more of the energy of a swing should be transferred to the ball with the two aerospace alloys.”
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The World According to Carpenter Tech…. The World According to Carpenter Tech…. “It may seem surprising that titanium, known for its low density, no longer has an edge over other alloys in specific strength. The specific strength of AerMet alloy can match that of Ti-6Al-4V alloy, or can exceed it, depending upon heat treatment.” The immediate questions are: What is specific strength? [CT world, SS = σ t /[10 6 *9.806* ρ ] • Using σ y , SS[AerMet] = 23.01 km, SS[aged Ti-6Al-4V] = 23.85 km…. Engineering basis v. marketing basis? More importantly, what does specific strength have to do More importantly, what does specific strength have to do with the primary function?
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