Page 36 - Demo

34 ISCAR GENERAL DRILLING HANDBOOKG73 and G83 %u2013 Peck Drilling Cycle The G73 is a canned peck drilling cycle with a short retract, whereas G83 is a canned peck drilling cycle with a full retract.The drill starts moving from the initial point to cycle start point with rapid feed and then continue moving by pecking to the defined depth at the set feed, at the end of each peck the drill retracts with rapid feed to distance is set within the machine (short retract) in case G73 is activated or to cycle start point (full retract) in case G83 is activated.G83 with G99 G83 with G981 R2346dQd75QQ1 R2 initial point346dQd75QQG73 with G99 G73 with G98R Rd qqqzdRinitial pointd qqqzd%u2014 rapid feed %u2014 set feed1-2 %u2014Rapid traverse to the X, Y coordinates of the drilling hole center2-3 %u2014Rapid traverse to the drilling cycle start point3-4 %u2014Drilling process to the Q depth at the set feed4-5 %u2014Drill retracts with rapid feed5-6 %u2014Rapid traverse to the start point of next step drilling process6-7 %u2014Drilling process to the Q depth at the set feed...-...%u2014This entire procedure is repeated until the drill reaches the defined depth position. Then, the drill is retracted with rapid feed to either the cycle start point or the initial point, depending on whether G99 or G98 is specified in the program.Syntax: G73 X%u2026 Y%u2026 Z%u2026 R%u2026 Q%u2026 F%u2026G83 X%u2026 Y%u2026 Z%u2026 R%u2026 Q%u2026 F%u2026Parameter DescriptionX hole position in X-axisY hole position in Y-axisZ drill hole depthR cycle start pointQ depth of cut for each peckF feed rateExample:G98 G73 X15.5 Y20.5 Z-10.0 R0.5 Q F150orG99 G83 X15.5 Y20.5 Z-10.0 R0.5 F150