What are the strategies for machining difficult-to-cut materials like Inconel and titanium?

Strategies for difficult materials include: Tool material selection (ceramic, PCBN for Inconel; uncoated carbide, PCD for Ti), Tool geometry (positive rake, sharp edges, proper chip breakers), Cutting parameters (low speed for Ti to prevent ignition; higher speed for Inconel with ceramic), Cooling strategies (high-pressure coolant 70+ bar, cryogenic for Ti, minimum quantity lubrication alternatives), Machining approach (climb milling, constant chip load, avoid dwelling), Tool path optimization (trochoidal for slotting, arc entry/exit), Wear monitoring (rapid notch wear in Ti, depth-of-cut notch in Inconel), and Fixturing (rigid setup, damping for thin walls). Key challenges: Low thermal conductivity causes heat concentration, work hardening in Inconel, reactivity and galling in Ti. Consider hybrid processes (LAM - laser-assisted machining) for extreme cases.