I support the movement to ban aluminum bats from all leagues, just to keep the kids safer. If bats were lighter, players would be able to swing with a greater force than they are able to with wooden bats, making it easier for professional players to hit a pitch. Sci. Marucci is known for it’s high quality bats and the Cat 8 is … Piazza's bat broke and the barrel portion bounced out towards Clemens on the mound. [3] L.R. Baseball trajectories and final distances for various batted ball speeds, References Wood bats have been a big part of my baseball life. From my analysis of various hollow softball bats I have shown that the frequency of the hoop mode correlates pretty well with performance. [1] The study was conducted with six skilled college players during more than a dozen batting practice sessions over a 5-day period. I measured the frequency of the mode of vibration in the barrel, called the hoop mode, which gives rise to the trampoline effect. While there are exceptions (Hall of Famer Joe Sewell supposedly used only one bat during his entire 14 year career) professional players typically go through several dozen bats each during a typical baseball season. Federal judge in Iowa ridicules Trump's pardons, Sanders speaks out on McConnell’s additions to bill, After release, 31 teams pass on Dwayne Haskins, International imposter attack targets government aid, Wage gap kept women from weathering crisis: Expert, Trump asks Supreme Court to set aside Wisconsin's election, Dawn Wells, Mary Ann on 'Gilligan's Island,' dies at 82, Pope Francis's native country legalizes abortion, Don't smear all Black players because of Dwayne Haskins, Americans in Wuhan fearful for U.S. relatives, Halsey apologizes for posting eating disorder pic. [10] D.A. 6 shows ball trajectories for varying batted ball speeds. Use of a metal bat is somewhat controversial. 48, 505-510, (1977). Money?? So, it can happen. Aluminum bats were introduced long before modern sponsorships; they were legalized because of the sharply rising costs of wooden bats. As such, the bat handle is very strong and will not break. During the testing, the average pitched ball speed was 56.6 mph. ELI5: Why do college baseball players still use aluminum bats? [14] Robert K. Adair, The Physics of Baseball, 3rd Ed., (HarperCollins, 2002), Metal baseball bats can outperform wood bats with a similar `sweet spot', Batted Ball Speed as a Function of Swing Speed and Impact Location, "Hoop frequency as a predictor of performance for softball bats, So what does it mean that a player using an aluminum bat can hit a ball 8-mph faster than he could with a wood bat? How do you think about the answers? Bats with lower hoop frequency (more compliant barrels) have increased performance. A third study in the early 1990's also concluded that metal bats performed no better than wood bats. During the Summer of 2004 I was granted access to the five metal bats used in their batting cage study. The company began manufacturing aluminum bats in 1968. [5,6] Their study involved actual players swinging bats at pitched balls in a batting cage. [2] In this study balls were shot from a pitching machine towards bats held stationary (without swinging) in the hands of a player. A total of 19 players (nine minor-leaguers, six NCAA college, four high school) participated in the study, swinging two wood bat models, and 5 different metal bat models (6 bats of each model). I started playing college baseball in the mid 1970’s right when metal bats came on the market and were authorized for competitive use. The metal bat was implemented in college baseball in 1975. Marucci Cat8 -3 College Baseball Bat. The data also shows that not all metal bats are the same. These bats have proven to be better than the traditional wooden bats in many ways. Penna , and J.J. Crisco,"Differences in Batted Ball Speed with Wood and Aluminum Baseball Bats: A Batting Cage Study," J. Appl. Balls were pitched towards an initially stationary bat and the rebound speed of the ball was measured, with the result that aluminum and wood bats performed the same. MLB Trivia: Two different Indians' pitchers has won the AL Cy Young since 2010. Who are the two pitchers? In contrast the aluminum bat is actually heavier, but since its balance point is more than an inch closer to the handle it will be easier to swing. [4] J.J. Crisco and R.W. Bad side effect: it comes off the bat faster and if yo happen to be the pitcher who gets it with a line drive, that's bad. Most college teams can get by with 12 aluminum bats per season, as opposed to more than 5 dozen wood bats per season. An aluminum/ceramic composite/graphite composite bat costs about 300 to 400 dollars and lasts approx 8 to 10 years befopre needing replaced. Keep reading to learn about the benefits of each type […] [6] J.J. Crisco, R.M. Other You'd think with how many players there are in minor league system that come out of college, they'd want to get accustomed to using wooden bats like in the pros. While watching ESPN Sports Center one night towards the end of May 2003, I saw a clip from a college game in which a metal bat shattered leaving the batter holding the handle and half the barrel while the other half of the barrel flew out and landed next to the shortstop. "Any idiot can see that the ball jumps off an aluminum bat faster than off of a wooden bat," said Jim Morris, head baseball coach at the University of Miami. It is not, however, impossible for aluminum bats to break - but usually when they do it is not the handle but the barrel that breaks. Most noticeably is the fact that the ball will travel farther. Clemens picked up the broken bat and threw it towards Piazza as he ran towards first. In a hollow bat, however, the bat barrel compresses somewhat like a spring, when the ball impacts it. The results of these two studies are in contrast to what players, coaches, and league officials all know - that metal bats do outperform wood bats. High speed video was used to obtain a 3-D map of the bat swing, locating the trajectory of several points on the bat and ball before, during, and after impact. Aluminum bats are extremely dangerous to infielders because of the speed they generate and the force behind the batted ball. Furthermore, most of the energy temporarily stored in the barrel is returned to the ball, and the energy which is lost in the bat compression is a small fraction of what would have been lost in the ball if it had impacted a wood bat instead. Greenwald, J.D. Plotting the data this way normalizes the results so as to remove the effect of different moments-of-inertia (see reason [1]). In addition, the hardness and resilience of aluminum can result in much greater speeds when the ball comes off the bat. Sci. Because the barrel of an aluminum bat is hollow, the distribution of mass along the length of a metal bat is considerably different than it is for a solid wood bat. When a ball hits a wood bat, it compresses to nearly half its original diameter, losing up to 75% of its initial energy to internal friction forces during this compression. The bars in the chart represent the average and spread for the top 10% (ie, fastest 10%) of all hits across all players for each bat. The results were an average batted ball speed (for line drives) of 88.6 mph for the wood bat and 92.5 mph for the aluminum bat. This advantage is a little tougher to scientifically validate - partly because the "sweet spot" is a term used to mean several different things relating to both the perception of feel and a measure of performance. Still have questions? They learn while playing in highschool and college that inside pitches get hit for runs. Many of the marketing ploys regarding the size of the sweet spot often refer to the perception that a given bat is more forgiving (ie., balls still go far, and bat feels good) for impacts away from the sweet spot. The NCAA is the highest level of amateur baseball where regulations allow players to hit with aluminum bats. Greenwald, "Metal baseball bats can outperform wood bats with a similar `sweet spot'," Proceedings of the 24th Annual Meeting, American Society of Biomechanics. This means that baseball players can swing an aluminum bat with much more speed than they could with a wooden bat. Most college teams can get by with 12 aluminum bats per season, as opposed to more than 5 dozen wood bats per season.[12]. The plot in Fig. Each player would take several swings with either a wood or aluminum bat (randomly chosen), rest for 10 minutes, then take several swings with the other bat. There is one paper from 1977, when aluminum bats were just beginning to assert their prominence, which concluded that the batted ball speed of an aluminum baseball bat was about 3.85 mph faster than a wood baseball bat. New alloys and treatment processes (cryogenic treatment) even improve the strength of the aluminum further. Krahenbuhl, and P. Lu, "Dynamic and performance characteristics of baseball bats," Research Quarterly, This answer might seem a little obvious, but think about it! That’s why wooden bats have always be… Burkett, S.S. Chen, G.S. [5] R.M. They are starting to band aluminum bats so I can't answer your question. Specically, the difference shows up in the location of the center-of-mass (CM) - otherwise known as the balance point. Greenwald, "Batted Ball Speed as a Function of Swing Speed and Impact Location," presented at the 2001 Annual SGMA Baseball/Softball Industry Meeting, Chicago, IL (2001). 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