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Shot peening, also called stress peening, is a special surface treatment technology within the field of shot blasting. The objective of this process is to increase the strength and fatigue life of highly stressed components.
In this satellite rotary table system, bevel wheels of different sizes made of steel, with a single component weight of 150 gm are shot peened. This significantly increases abrasion resistance and operating life. Peening the parts is the primary objective. In addition, the surface of the components is cleaned. The dimensions of the components can vary from 58 mm to 85 mm in diameter, and 18 mm in height. A total of 30 peening programs are stored in the control system for processing the different components.
The system saves energy and money, requiring much less energy than a compressed-air system with a much higher output.
High-intensity shot peening is achieved by a combination of powerful (15 KW) high-performance blast wheels and the very short travel distance between the peening media and the component due to the system's compact construction.
This versatile system allows simultaneous processing of different types of parts. They are placed on parts fixtures in all five segments of the rotary table.
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Shot Peening or Stress Peening serve to increase the fatigue strength of parts subjected to high alternating bending or torsional stress. Shot and Stress Peening have widely superseded other time-consuming and expensive processes, and permit the design of less expensive, light weight components.
Shot or Stress Peening lead to significant improvements of mechanical properties of workpieces.
DISA builds a broad range of machine models based on know-how established over many decades, and offers vast experience and latest knowledge gained in its own workshops.
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Shot peening is a specialized blasting process that bombards a metallic work piece with a round abrasive, typically steel shot, glass beads, or ceramic shot, thereby compressing the surface. This compression can greatly improve the strength and fatigue life of the part. An analogy would be the blacksmith that hammers a sword to increase its strength.
Parts that are commonly shot peened include:
- Valve Springs
- Suspension Springs
- Leaf Springs
- Torsion Bars
- Gears
- Connecting Rods
There are many others. Shot peening has the potential to improve the service life of nearly any metallic work piece that is subject to repeated stresses.
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Our equipment has proved to be particularly suited for specific types of workpieces.
Based on technical and practical know-how gained over decades we have developed various application-specific, custom-engineered blasting systems for:
Blasting for Strength
e.g. shot peening of parts for automotive, aviation & aerospace industry
Shot Peening Machines
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