A precision three-dimensional image measurement technique of high-temperature forging and the Near-Net-Shape of forging process

高温锻造精密三维图像测量技术及锻造过程近净形

基本信息

批准号：
15560367
负责人：
LU Cunwei
金额：
$ 2.24万
依托单位：
Fukuoka Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15560367/
关键词：
Three dimension Measurement Image Large sized High temperature Forging Resources saving Energy saving 3次元

项目摘要

The large steel forgings used for generator cores, marine vessels, steel manufacture, etc. are first processed using a large free forging press, and are then finished by machining. In order to ensure the correct finished size of the object, it is necessary to add a size margin in the forging process. It is desirable to make this margin as small as possible so as to reduce the amount of raw material used and the power consumption of machining. For this reason, it is necessary to measure the dimensions of forging components, such as the shaft slant, the bend and the cross-sectional shape, at the time of the forging process. However, since the temperature of the forging objects temperature is high and its size is large, measuring its dimensions can be very difficult to perform.In this study, various techniques are proposed. These include a multi-spectral image-analysis technique, a measurement error cutback technique by temperature distribution, a large-sized body three-dimensional measuring technique using a multi-camera and a forging object extraction technique. By using the proposed techniques, measurement of a high temperature (about 800-1200℃) and large size (it has a length of approximately 10m and a diameter of approximately 1-3m) forging object is realized in a short time and to high accuracy.An instrumentation system based on the proposed technology has been developed. We are currently working to implement the measurement system in a factory.Notes : Investigator Mr.Masakatsu Ueno of Japan Casting & Forging Corporation retired with 2005, two research partnership people, Mr.Toru Kuwaki and Mr.Takumi Oshikawa of the corporation took over of the research contents of the schedule assigned to Mr.Ueno, and they were completed favorably.

首先使用大型免费锻造压力机处理用于发电机芯，海洋vissels，钢制造商等的大型钢结构，然后通过加工来完成。为了确保对象的正确完成尺寸，有必要在宽恕过程中添加一个尺寸余量。希望使此余量尽可能小，以减少所使用的原材料量和加工的功耗。因此，在宽恕过程时，有必要测量忘记组件的维度，例如轴倾斜，弯曲和横截面形状。但是，由于遗忘物体的温度温度很高，而且大小很大，因此测量其尺寸可能很难执行。在这项研究中，提出了各种技术。其中包括一种多光谱图像分析技术，一种按温度分布进行的测量误差削减技术，使用多相机和锻造对象提取技术的大型身体三维测量技术。通过使用所提出的技术，测量高温（约800-1200℃）和大尺寸（其长度约为10m，直径约为1-3m，大约1-3m）遗忘对象在短时间内实现，并且基于高度精确度。基于所提出的技术的仪器系统已经开发出来。我们目前正在努力在工厂中实施测量系统。