3D engineering products are constantly evolving and dramatically changing the manufacturing scene. In particular, the handy type non-contact 3D measuring system (3D scanner) was previously utilized in limited departments, but nowadays it is also utilized in quality control departments and others.
In this article, we would like to introduce a case of Yanagawa Techno Forge (Thailand) (hereafter YTT), a customer of the Japanese affiliated forging industry in Thailand, who implemented a non-contact 3D measuring system at a relatively early stage (in the Thai forging industry).
Forging is a method of manufacturing by heating metal to a high temperature and hitting it, as if making a sword or blacksmithing. YTT uses "hammer forging", which involves applying pressure to die with a hammer, but the die life is short, and it can only be used about 5,000 times, which is 1/10 to 1/20 of casting dies. Therefore, it is necessary to change the die almost every day. In addition, when the die of hammer forging has eccentric die carving, the moment occurs at the impact of hitting then the upper die moves therefore the die design need to take this into consideration in advance. It can be said that it is an industry where the working load on the mold department is high.
At the request of a Japanese affiliated manufacturer who is a customer of YTT, the full-scale implementation of quality control by 3D shape evaluation was decided.
【Features of Handy 3D Scanner】
■ It is convenient to carry and can measure on the spot without moving the mold.
■ Small size but sufficient accuracy
■ No need to do preparation before measurement
【Results after the installation】
■ It has become possible to measure starting points, intersections, angles, etc., that could not be done before, which is useful for checking the shape in 3D.
■ It has become possible to inspect narrow shapes, R shapes, etc., which were difficult with other measurement tools.
■ Manual modifications of forging dies can be digitized in 3D scanning and reflected in the model, and the history can be saved.
At the start of production of new products, there were some shapes that could not be measured by the existing 3D measuring machine (CMM), and there was a further need for 3D shape evaluation. Since the company already knew the convenience of the handy 3D scanner, they had decided to install a new model of the same brand.
【Results after the installation of the new model handy 3D scanner】
■ Work efficiency has dramatically improved due to the evolution of scanning speed and resolution.
■ Rich functionality greatly reduces the time required to correct data after 3D scanning
|Work item||Conventional time required||Time required after implementation|
|Spraying before measurement||15 minutes||0 minutes (spraying not required)|
|Automatic surface generation||3 hours||20 minutes|
|Automatic hole-filling||2 hours||10 minutes|
|Finalize||30 minutes||5 minutes|
|In addition to the above, various work times have been greatly reduced due to the increase in command functions.|
【Voice of the customer】
“Many of the products we manufacture have complicated shapes, and it could have taken a whole day to measure. After the implementation of the handy 3D scanner, the measurement time had become surprisingly short, and the extra time can be used to create better products. We will continue to utilize 3D measuring systems to create products that satisfy our customers. "