Qingyuan Micro Down-the-Hole Drill

That brings me to step one of your micro drilling adventure. Research. You need to know your machine, you need to know your material, you. . The second step, after you do your homework and figure out the specifics on the material you are running, the coolant you are going to use and narrow it down to two or three drill. . Finally, I’m going to discuss a little about the actual tools. There are many tooling companies that provide micro drills. In your research you will find that many of them have very specific information on the geometry they use for their cutters and the coatings and every. . In micro drilling coolant is a key consideration. Here a spray mist (minimum quantity coolant) sprays on a micro drill (shown in comparison with a pencil tip). Yes, we. [pdf]

Screw air compressor connected to cutting machine

Laser cutting is a widely used laser processing technology globally. Its use dates back to the 1970s when it was first used for cutting purposes. The rise and popularity of third-generation laser technology in the early 21st century have made laser cutting increasingly popular in processing materials like sheet metal,. . Laser cutting involves the use of a high-power and high-density laser beam that is focused on the workpiece, causing the material at the irradiated area to melt, vaporize, ablate, or reach its ignition point. The melted material is then removed through high-speed. . When laser cutting, the choice of cutting gas depends on the material being cut. The selection of the cutting gas and its pressure significantly impact the quality of the laser cutting. . A comprehensive consideration of the laser power, auxiliary gas type, pressure, and flow rate is necessary when selecting an air compressor for a laser cutting machine. This is. [pdf]

Engineering Tunnel Boring Machine

A tunnel boring machine (TBM), also known as a "mole" or a "worm", is a machine used to excavate tunnels. TBMs are an alternative to drilling and blasting methods and "hand mining", allowing more rapid excavation through hard rock, wet or dry soil, or sand (although each requires specialized TBM technologies). TBM-bored tunnel cross-sections extend up to 17.6 meters (58 ft. HistoryThe was developed by Sir to excavate the in 1825. However, this was only the invention of the shield concept and did not involve the constructio. . TBMs typically consist of a rotating cutting wheel in front, called a cutter head, followed by a main bearing, a thrust system, a system to remove excavated material (muck), and support mechanisms. Machines v. [pdf]