Общий каталог Yamawa 2022 - 2023 - страница 1234

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Technical Description of productsInformation 25. Trouble Shooting Troubles Breakage Excessive wear Check point Segments Prevent excessivecutting torque Prevent clogging of chips Tap Workpiece Tap ●Use workpiece which has ○Use workpiece which has even structure and hardness. even structure and hardness. Hardness ●Pay attention to tapping position and material thickness. ●Pay attention to tapping position and material thick- Shape ness. Workpiece ◎Provide bigger bored holes. ◯Provide bigger bored holes. ●Provide countersinking on ●Prevent work hardening. hole entrance. ◯Prevent work hardening. Bored hole ◎Provide deeper tapping hole. ●Prevent slanting of hole. ●Avoid inconsistent feed. Machine ●Adjust feed stroke. ●Use tap holder of oating type. Jigs, Holders ◎Use tap holder with torque limiter. ○Reduce cutting speed. ○Reduce cutting speed. Cutting condition ●Use the other cutting oil ●Provide proper timing for changing or lling-up of cutting oil. which prevents cold welding. ●Prevent mixing of other oil into cutting oil. ●Use insoluble type cutting Lubricant oil. ●Use other cutting oil which prevents cold welding. ●Use cutting oil of insoluble type. ●Adjust ow of cutting oil and method of lubrication. ●Remove unnecessary chips during tapping. On process ●Provide bigger space for chips disposal. ●Use PO tap(through hole). Selection ●Use SP tap(blind hole). ●Use Roll tap. ●Provide bigger chiproom. ●Change material of taps. ●Use serial set tap. ●Provide proper hardness on ●Change material of taps. taps. ●Provide proper hardness on taps. Tap Design ●Reconsider length of cutting chamfer. ●Reconsider length of cutting chamfer. ●Use set tap. ●Provide nitride on taps. ●Be careful about burning during re-sharpening. ●Be careful about burning during re-sharpening. Re-grind ●Provide proper land. ●Increase re-sharpening frequency. ◎ : Most suitable solution  ○ : Second most suitable solution Technical-83