What question did this study set out to answer?

This research aims to optimize shot peening conditions to achieve shorter processing times while meeting quality requirements.

June 14, 2026Open Access

Method to Set Shot Peening Conditions for Shorter Processing Time

TYTakeshi YAMADA AKAkiko Kasami

Key Points

This research aims to optimize shot peening conditions to achieve shorter processing times while meeting quality requirements.
Evaluated various shot sizes and intensities for shot peening in a controlled environment.
Conducted tests to assess the impact of different processing conditions on quality requirements.
Measured efficiency based on processing time and quality metrics such as intensity and coverage.
Identified an optimal intensity level for each shot size, leading to efficiency gains.
Reduced processing time was achieved at the specific intensity for the appropriate shot size.
The intensity level was crucial for meeting the requirement of 100% surface coverage.

Abstract

Shot peening in the aircraft field has two quality requirements: intensity, which is an index of the residual stress level applied to the surface, and coverage, in which the indentation by shots should cover 100% of the surface. There are multiple processing conditions to satisfy these requirements, and industrially, the shorter the processing time, the higher the efficiency. In this report, by optimizing the conditions including the size of the shot, which is a projectile, the method to set the optimum conditions with a shorter processing time was evaluated through tests. As a result, there is a suitable intensity level for each shot size, and it is considered that the shot peening processing time is shorter at that intensity level than at other shot sizes.

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