Tag Archives: Blast media

Shot Blasting 101

Shot blasting is a specialized surface finishing process where small metal (or mineral) pellets, called blast media, are thrown onto the surface of a work piece at incredibly high speeds, ranging from 200-800 feet per second.  The impact on the work pieces from this process is what produces the desired surface finishing effect.

Shot blasting can help achieve surface cleaning, surface preparation, descaling, deburring, deflashing, and shot peening.

The process components of a shot blasting system include a shot blast machine, raw and finished work pieces, blast media, dust, and other byproducts.

The two most common types of shot blast machines are turbine blasting and air blasting.

Continue reading Shot Blasting 101

Blast Media – Considerations when choosing

Important factors that should be considered in the selection of any blast media for a particular application is the material and chemical composition, hardness, density, shape, screen size, and, last but not least, the hardness of the component to be blasted.

Component image

The term ‘media’ as used in mechanical surface finishing refers to the free flow abrasive or non-abrasive type of media which carries out the process required on the component.

So, what can be considered and used as a blast media?

Anything! That can be projected through a blasting system.

Media Characteristics to be considered include:

Continue reading Blast Media – Considerations when choosing

Shot Peening – Blasting for Longer Component Life

High speed and highly controlled, the process of shot peening has many similarities to the aerospace, automotive, and aviation components it is used on. The machines require absolute precision and reproducibility much like the components they are preparing for long life and changing loads.

Shot peening is a special shot blasting process in which spherical blast media is thrown at the surface of metallic work pieces. The impact energy of the pellets “cold forms” the upper layers of the metal similar to hammering and forging processes.

More on shot peening for longer component life

Blast Medias – Considerations : Choice And Use

Important factors that should be considered in the selection of any blast media for a particular application is the material and chemical composition, its hardness, its density, its shape, screen size and last but not least, the hardness of the component to be blasted.

Component image

Continue reading Blast Medias – Considerations : Choice And Use