Shot peening is a means of cold working the surface of metal parts by means of hail or blast of round metal shot directed against surface. The impact on the surface will indent the surface metal surface causing the plastic flow and work hardening the surface metal. The hardening of the surface increases its tensile strength and yield point. To learn about shot peening Erie PA should be the place to prioritize.
This technique is very useful in the metal industry. The main benefit is that it prevents fatigue failure is metal by strengthening its surface. Peening is a relatively new technique although it existed is other forms. To understand what happens during the process it is good that one goes back in history. This process is simply a renovation of a very ancient art.
The earliest features of cold working included hammering which was referred to as hammer hardening. It was used in ancient Greek to harden arrow and spear heads. The arrow and spear heads used to be strong such that they could pierce an animal without any troubles. They also used this procedure to create body armors which they used during times of war. It is believed that they has strong body armor which had the ability to bend spears and arrows from the enemy.
The surfaces are made even better using advanced techniques by metallurgists in the current times. The modern technology has made it easier to determine and measure any increases in strength and hardness. This has made determination of the percentage which provides optimum results easier. This has made it easier to produce standardized size metals that are quality controlled and assures reproducibility.
Peening can be done using different shots. One can get peening shots from any company dealing with metals but also be careful not to purchase one whose quality is not good. A good shot needs to be well screened to a specific size range and it should also be well rounded. The hardness of shot and the hardness of metal to be peened needs to be equal or the shot needs to be harder.
Those are just few considerations when one is buying a shot. Some of the types of shots include a steel shot. It is effective as far as the skyrocketing fatigue strength is considered. Steel shots are more expensive than chilled iron shots. Chilled iron shots present a major disadvantage that has to do with separation problem. This is due to the fact that peening specifications require that a broken shot be separated and eliminated from the peening shot.
Another peening material is the cur wire shot. This material is made by cutting off short lengths of steel wire. Peening conditions need this variety of shot to be shot against scrap steel while waiting for it to round out. This procedure not only reduces the life of the shot but it also consumes a lot of time.
As discussed earlier peening is majorly used to increase the fatigue life of cycle stressed parts. Apart from this it is also applicable in various fields such as it also helps in the prevention of stress corrosion cracking and eliminates fret corrosion. It also help in straightening parts.
This technique is very useful in the metal industry. The main benefit is that it prevents fatigue failure is metal by strengthening its surface. Peening is a relatively new technique although it existed is other forms. To understand what happens during the process it is good that one goes back in history. This process is simply a renovation of a very ancient art.
The earliest features of cold working included hammering which was referred to as hammer hardening. It was used in ancient Greek to harden arrow and spear heads. The arrow and spear heads used to be strong such that they could pierce an animal without any troubles. They also used this procedure to create body armors which they used during times of war. It is believed that they has strong body armor which had the ability to bend spears and arrows from the enemy.
The surfaces are made even better using advanced techniques by metallurgists in the current times. The modern technology has made it easier to determine and measure any increases in strength and hardness. This has made determination of the percentage which provides optimum results easier. This has made it easier to produce standardized size metals that are quality controlled and assures reproducibility.
Peening can be done using different shots. One can get peening shots from any company dealing with metals but also be careful not to purchase one whose quality is not good. A good shot needs to be well screened to a specific size range and it should also be well rounded. The hardness of shot and the hardness of metal to be peened needs to be equal or the shot needs to be harder.
Those are just few considerations when one is buying a shot. Some of the types of shots include a steel shot. It is effective as far as the skyrocketing fatigue strength is considered. Steel shots are more expensive than chilled iron shots. Chilled iron shots present a major disadvantage that has to do with separation problem. This is due to the fact that peening specifications require that a broken shot be separated and eliminated from the peening shot.
Another peening material is the cur wire shot. This material is made by cutting off short lengths of steel wire. Peening conditions need this variety of shot to be shot against scrap steel while waiting for it to round out. This procedure not only reduces the life of the shot but it also consumes a lot of time.
As discussed earlier peening is majorly used to increase the fatigue life of cycle stressed parts. Apart from this it is also applicable in various fields such as it also helps in the prevention of stress corrosion cracking and eliminates fret corrosion. It also help in straightening parts.
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