687 Каталог INGERSOLL 2011 Режущий инструмент и инструментальная оснастка Стр.689

Каталог INGERSOLL 2011 Инструмент и оснастка Стр. 689 0687 Lab2u

PRODUCTIVITY TIPS .005" allowable in this direction .005" .000" 1 in this direction t Drill .000" in this direction tDrill .005" allowable in this direction When using drills on the lathe the drills must be properly aligned prior to taking the first cut. Plus periodic alignment checks must be made to insure the continued accuracy of the setup. Common drilling applications with flat or convex surfaces generally require no speed or feed adjustment during the drilling cycle. Special situations however may necessitate temporary adjustments. In the examples below reductions to feed and or speed may be required to minimize deflection or tool wear. Material surface conditions such as case hardening or scale may require slowing penetration to some degree. Interior conditions such as porosity sandy castings etc. also have some effect on tool life. Operating parameters may have to be adjusted accordingly. Feedrates on 4:1 drills may need to be reduced even more than the recommendations below indicate. Generally this reduced feedrate is required until the first .200 DOC after full engagement is reached. Most Common Conditions Less Common Conditions Sloped: If slope exceeds 5 reduce feed by 50% during penetration. during penetration. during penetration. Interrupted: Reduce feed when crossing and before penetration. 689