Drilling stainless steel require special method, because this metal hardly disipas heat. The heat during the boring stays in the tool, no in the material. Like this it seems bad varmkonduktilo.
Very seriously escape too fast boring. If you bear stainless steel too quickly and on a long-term basis, the metal hardens. So it becomes even more hardly penetrate.
How to Drill Stainless Steel Slowly and Carefully
For inhibit that, do not leave the drill populate. Choose more lentan turnrapidon and stronger enpaŝigon for such materials.
Pace and enpaŝigo are inherent. At stainless stall the enpaŝigo are most important. Robusta machine will extend the tool, together with good lubriko, apt pace and enpaŝigo.
During usage of alt-fast steely drills in 304 stainless, the surface pace must be 40-60 feet for minute. Different grades of stainless steel have different malmoleco. According to the malmoleco, use more lentan borrapidon.
Ideally turn in 300-500 RPM for mordilo of 1/4 inch. Because boring without fridilo, the RPM must be much less than for other metals. At the most many metals suffice to reduce RPM to 25% of the standard for boring without fridilo, but stainless require even bigger decline.
Mill gives more kontroliĝeman enpaŝigon. For some tasks, enpaŝigo of around 4 ipm at undoubted RPM well operate. Bearing stainless, it well helps to keep everything cool by means of bacio.
Also use apt lubrikan liquor. Plenty of boroleo inhibit trovarmiĝon of the bit. That helps the slices stay good, so you can bear more holes.
Rather use intermediate pace with intermediate pressure and boroleo.
Always keep the tools sharp, so that they cut and do not rub. Reŝutu the peak or exchange the drill before it dulls. Do not force bad drill.
For deep holes, draw it commonly for remove the chips. Deep boring start in 4 occasions the diameter. Fuck the bit flatly and keep the ŝtonkon flatly.
Escape bad ports or borilĉukojn, because the drill slips. Magnum Extra Superior drills a lot surpass kobaltajn in applications with malmoliga stainless steel. Black oxide jobber-bits also well served for stainless, if the particular pace and enpaŝigo answer to the roof.
