533 Каталог ISCAR 2017 Вращающийся режущий инструмент и инструментальная оснастка Стр.529

Каталог ISCAR 2017 Ротационный инструмент Стр. 529 0533 ENG Lab2u

DR-TWIST INDEXABLE DRILL LINE USER GUIDE Insert Positioning Machining Conditions Cooling Methods Directing the coolant through the tool is essential for reliable machining. This method prevents chip pile up, insert damage or breakage, and damage to the workpiece surface. Rotating Drills Internal Coolant Apply standard cutting data. External Coolant Drilling depth is limited to 1.5xD. For larger depths, a pecking cycle is recommended. For best results: 1. Check adapter rigidity. 2. Minimize drill runout in relation to spindle center line. 3. Use recommended cutting conditions. How to Select Cutting Parameters Step 1 - Prior to Drilling Use charts on pages 532-533 to select feed and speed according to workpiece material. For the first grade choice. In general we recommend selecting IC808. Step 2 - Initial Test Hole Drilling Evaluate chip evacuation. If not satisfactory, adjust feed and speed, using example photos below. If chip evacuation is still a problem, i.e. chips are too long, change the chipbreaker to GF as shown below. SOMT/SOMX Too Tight may cause insert damage Optimal Shape Too Long may cause tool damage Optimizing Chip Shape Chip control is one of the most important factors for tool performance in order to facilitate chip evacuation and avoid tool damage. Cutting conditions must be adjusted to achieve optimal chip shape. How To Achieve Optimal Chip Shape Too Tight Increase speed within recommended limits. If not satisfactory, decrease feed. Optimal Shape Too Long If machining at high speed, first reduce speed. If unsatisfactory, increase feed, but do not exceed upper limit. Member IMC Group kSSII t INDEXABLE DRILLS