Baseball Bat

Bats Adult — 10 April 2008

A baseball bat is a smooth wooden or metal club used in the game of baseball to hit the ball after the ball is thrown by the pitcher. It is no more than 2.75 inches in diameter at the thickest part and no more than 42 inches (1067 mm) in length. It typically weighs no more than 36 ounces (1 kg). The batter uses the bat two-handed to try to hit a pitched ball fair so that he may become a runner, advance bases, and ultimately score a run or help preceding runners to score.

Terminology

Although using a stick to hit a ball is a somewhat simple concept, the bat is a complex object. It is carved or constructed very carefully to allow for a quick balanced swing, while providing power. The bat is divided into several regions. The “barrel” is the thick part of the bat, where the bat is meant to hit the ball. The part of the barrel best for hitting the ball with, according to construction and swinging style, is often called the “sweet spot”. The end of the barrel is not part of the sweet spot, and is simply called the tip or end of the bat. The barrel narrows down, and becomes the “handle”. The handle is very thin, so that batters can comfortably set the bat in their fingers. Sometimes, especially on metal bats, the handle is wrapped with a rubber or cloth “grip”. Finally, next to the handle is the “knob” of the bat, a wider piece that keeps the bat from sliding out of a batter’s hands. Over the centuries, the baseball bat’s form has become more refined. During the 19th century, many shapes were experimented with, as well as handle designs. Today, the baseball bat is much more uniform in design.

“Lumber” is a sometimes-used slang term for a bat, especially when wielded by a particularly good batter

Manufacturing Process Baseball batsA mill worker places each split of wood onto an automatic lathe that shaves the rough edges off as it turns the wood. The billets, as they are now called, are inspected again for straightness of grain. The billets are stacked and strapped together into six-sided bundles. Workers paint the ends with a protective preservative to keep the wood from fraying or rotting. The bundled billets are then trucked to the lumberyard of the bat manufacturer.

The billets that arrive at the lumberyard are considered “green” wood because they still contain sap and gum. In order to strengthen the wood, the sap and gum must be removed by an air-drying process called “seasoning.” To achieve the proper seasoning, the billets are simply stacked in the yard for a period of six months to two years.

When the billets have dried completely, they are weighed and inspected for quality. A worker places each billet on an automatic lathe and shapes it into a rough baseball bat shape with a narrowed neck. The bat forms are sanded, inspected once more, and then sorted according to weight. The bat manufacturer keeps a model of each bat made, typically identified by the baseball player who initially ordered it. When a player or team places an order, the order may look like this: six Johnny Bench models, ten Hank Aarons, four Mickey Mantles.

The plant workers who create the final product are called bat turners. They are highly skilled artisans who have been specially trained for the intricate work. When an order is placed, the bat turner selects a billet from the storage bin that fits the called-for weight and length. The billet is placed on a lathe. The model bat is placed on a rack above and behind the lathe. The bat turner revolves the billet slowly on the lathe, sanding and shaving it to an exact replica of the model. Using calipers, the bat turner measures the billet every 1-2 inches (2.54-5 cm) and weighs it repeatedly until it is perfect.

The bat is branded with the company trademark and the signature of the player associated with the model. The trademark is placed one-quarter of a turn from the sweet spot (the ideal spot where the ball should strike the bat). If the order calls for staining, the bat is dipped into a staining vat. All of the bats are then varnished, packed into cartons, and shipped to the player or team.

Testing quality

The structural integrity of the baseball bats are monitored through repetitive impact testing. Some factories have compressed-air cannons that shoot baseballs at precise points on the bat. High-speed cameras record the impact while accelerometers measure the velocity. In other plants, robotic arms whack the balls off over-sized golf tees. Inspectors collect data on the frequency of bending and how the balls travel off the bat. Baseball Bat: http://www.enotes.com/how-products-encyclopedia/baseball-batBaseball Bat Regulations

In professional baseball, only wooden bats are permitted, and they are not allowed to be corked