Thread Infeed Method Radial infeed is the simplest and quickest method The feed is perpendicular to the turning axis, and both flanks of the insert perform

Thread Infeed Method Radial infeed is the simplest and quickest method The feed is perpendicular to the turning axis, and both flanks of the insert perform

Thread Infeed Method Radial infeed is the simplest and quickest method.The feed is perpendicular to the turning axis, and both flanks of the insert perform the cutting operation. Radial infeed is recommended in 3 cases Flank Infeed (modified) Alternate Flank Infeed when the pitch is smaller than 16 tpi for material with short chips for work with hardened material Flank infeed is recommended in the following cases When the thread pitch is greater than 16 tpi. Using the radial method,the effective cutting edge length is too large, resulting in chatter. for TRAPEZ and ACME. The radial method result in three cutting edges, making chip flow very difficult 4 Use of the alternate flank method is recommended especially in large pitches and for materials with long chils This method divides the load equally on both flanks, resulting in equal wear along the cutting edges. Alternate flank infeed requires more complicated programming, and is not available on all lathes Shim ATE ATI i Insert d 9.525 12.7 15.875 Size L 16 22 27 Holder ER(L)H IR(L)H ER(L)H IR(L)H ER(L)H IR(L)H Ordering Code ATE16 ATI16 ATE22 ATI22 ATE27 ATI27 Standard shim has lead angle 1.5° Application grade Grade Features Available insert type PC5300 PVD Universal Grade For chip breaker type only Stable machining on a wide application due to fine-grained carbide substrate with balanced heat resistance and toughness Excellent wear resistance and oxidation resistance due to AiTN coating film Outstanding performance on high speed machining ERM/IRM (Insert with Chip breaker) PC3030T General Grade A tough sub-micron substrate with TiAlN coating provides good fracture toughness and excellent wear resistance Outstanding performance on STS and hard to cut materials ER/IR (Ground insert) Recommended Cutting Speed as per workpiece(vc) ISO Work piece > P Carbon steel, Alloy steel, Cast Steel PC5300 PC3030T M Stainless steel, Heat resistant steel, Titanium alloy steel PC5300 PC3030T K Carbon Iron, Aluminum, Cast Steel, Copper PC5300 PC3030T J- Threading 5 Technical Information for Threading Radial Infeed