Intelligent Laser Head With Real-Time Thermal Feedback Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional laser processing apparatuses lack the capability to directly measure the surface temperature and melting temperature of processed objects, leading to reduced processing efficiency.
Innovation Solution
A laser processing apparatus that includes a heat distribution measurement unit to measure the surface temperature and melting temperature of the processed object in real-time, and a control unit to adjust the laser beam intensity based on these measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional laser apparatus indirectly processes the surface by adjusting laser beam output, then the apparatus structure remains simple, but the processing efficiency is reduced due to inability to directly measure temperature
Solution Approach 1:
An infrared camera is introduced as an intermediary measurement device to non-contactly capture thermal radiation from the processed object surface. The camera converts infrared radiation into visible thermal images, enabling temperature measurement without physical contact or interference with the laser processing beam path.
Solution Approach 2:
The patent replaces indirect temperature inference methods with direct optical measurement using an infrared camera. This substitution eliminates the need for physical temperature sensors that would interfere with the processing, allowing real-time temperature monitoring while maintaining system simplicity.
2Productivity
If temperature measurement is added to laser processing apparatus, then processing efficiency improves through real-time temperature correction, but the device complexity increases
Solution Approach 1:
The infrared camera system serves multiple functions: it monitors processing temperature in real-time, provides visual feedback for process control, and enables automated laser parameter adjustment. This multi-functionality justifies the added complexity by delivering comprehensive process control capabilities.
Solution Approach 2:
The system establishes a closed-loop feedback mechanism where the infrared camera continuously measures surface temperature, the control unit compares measured temperature with target values, and automatically adjusts laser beam parameters accordingly. This real-time feedback enables precise temperature control and significantly improves processing efficiency.
3Manufacturing precision
If real-time temperature measurement and correction is implemented, then processing precision improves, but the system complexity and measurement requirements increase
Solution Approach 1:
The patent employs non-contact infrared measurement instead of physical temperature sensors. This substitution eliminates measurement interference with the laser beam and processed material, enabling accurate temperature detection without affecting processing precision or requiring complex sensor integration.
Solution Approach 2:
The infrared camera acts as an intermediary that captures thermal radiation information without contacting the processed object. This non-intrusive measurement approach maintains processing precision by avoiding any physical interference with the laser-matter interaction while providing accurate temperature data for control.
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
This solution significantly improves processing efficiency by enabling real-time correction of temperature measurements during processes like soldering, welding, and patterning, without altering the central energy distribution of the processing region.
Implementation Method 1
the heat distribution measurement unit may include at least one of an infrared camera and a pyrometer
Implementation Method 2
a laser generation unit; a beam conversion apparatus for adjusting the size or shape of a laser beam generated by the laser generation unit
Data Source
AI summary
The present invention relates to a laser processing apparatus comprising an intelligent optical head, and provides a laser processing apparatus comprising: a laser generation unit; a beam conversion apparatus for adjusting the size or shape of a laser beam generated by the laser generation unit; a beam adjustment unit for adjusting the focal position of the laser beam comprising passed through the beam conversion apparatus; a heat distribution measurement unit for measuring at least one of the surface temperature and the melting temperature of a processing target; a control unit for adjusting or controlling the intensity of the laser beam at the measured temperature of the processing target; and a beam focusing unit for focusing and transmitting the laser beam comprising passed through the beam conversion apparatus to the processing target, and a method including same.