Electronic Sensor Calibration for Shot Peening Intensity
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Solution Overview
Problem
Current shot peening processes rely on destructive Almen strip tests for measuring peening intensity, lacking a direct method and requiring multiple strips for calibration, which is inefficient and costly.
Innovation Solution
Calibration of an electronic sensor to correlate peening intensity with signal output, allowing it to replace Almen strips by setting blast stream parameters, measuring peened test strips, and recording sensor signals at various intensity levels to create a correlation chart.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If Almen strips are used to measure peening intensity, then measurement accuracy is achieved, but the method is destructive and requires multiple strips for calibration
Solution Approach 1:
The patent replaces the mechanical Almen strip measurement system with an electronic sensor system that uses electromagnetic or optical fields to detect peening intensity. The sensor generates electrical signals proportional to the impact energy of the shot stream, eliminating the need for physical strips while maintaining measurement capability
Solution Approach 2:
The patent creates an electronic copy of the Almen strip measurement function through a sensor that produces electrical signals corresponding to peening intensity. This electronic replica allows multiple readings without consuming the measurement medium, as the sensor can be reused indefinitely
2Reliability
If multiple Almen strips are used for calibration, then reliable peening intensity measurement is achieved, but time consumption and cost increase
Solution Approach 1:
The patent replaces the time-consuming process of peening multiple physical strips and measuring their curvature with an electronic sensor that provides real-time electrical signal readings. The sensor can be calibrated once and then provides immediate, repeatable measurements without requiring multiple test specimens
Solution Approach 2:
The electronic sensor system is self-calibrating through its electrical signal output, which directly correlates to impact energy. The sensor does not require external measurement equipment or multiple test samples to verify its readings, as the electrical signal itself provides the measurement data
3Reliability
If Almen strips are used for peening measurement, then industry standard compliance is maintained, but the process is inefficient and costly
Solution Approach 1:
The patent replaces the traditional mechanical Almen strip methodology with an electronic sensing system that maintains measurement reliability while dramatically improving process efficiency. The electronic sensor provides continuous, real-time monitoring without the need to stop the peening process to replace or measure strips
Solution Approach 2:
The electronic sensor enables continuous measurement of peening intensity throughout the peening process, whereas Almen strips require interruption of the process for measurement. The sensor provides uninterrupted data collection, allowing for real-time process optimization and eliminating downtime associated with strip changes and measurements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables non-destructive, efficient measurement and prediction of peening intensity, reducing the need for Almen strips and improving process consistency and cost-effectiveness.
Implementation Method 1
A mechanical surface treatment method referred to as 'Shot Peening' or 'Shot Blasting' may be characterized by the impact force of a spherical piece of 'shot' onto a target material
Implementation Method 2
This action produces a compressive layer that resists fatigue failures
Implementation Method 3
The intensity of the blast stream is directly related to the depth of compression achieved in the target material
Data Source
AI summary
A method for calibrating an electronic sensor for peening intensity. A range of desired intensity levels is chosen and that range may contain a single value or multiple values. The parameters for a blast stream are set that correspond to a particular intensity level. Test strips are peened in the blast stream and then the arcs of the peened strips are measured to determine the intensity level of the blast stream. Subsequently, a sensor is placed in the blast stream set at particular intensity levels and the signal generated at each intensity level is recorded. A roto-flap peening device can also be set at particular intensity levels and then a sensor is subjected to the roto-flap peening device set at those levels. A chart may be developed that correlates peening intensity to the signal of the sensor so the sensor may be used in place of Almen strips.