Machining Tips
Minimum Tap Depth
MINIMUM TAP DRILL DEPTH: The tap drill depth for tapped holes should be deep enough to allow for the minimum thread depth, the taps chamfer, any chips that may accumulate in the bottom of the hole and any over-travel of the spindle as it slows to a stop before reversing….
Metric Specifications
ASME-USCTI-DIN-JIS-ISO SPECIFICATIONS: More and more Metric specifications are showing up on manufacturing prints in the USA. To help clarify abbreviations we offer explanations below: ASME/USCTI: USA Tool Standards American Society of Mechanical Engineering / United States Cutting Tool Institute, all standards are specified in the Imperial measurement (Inches). DIN: German…
Core Drill Basics
CORE DRILL FEEDS AND SPEEDS: The proper tool to use for enlarging a predrilled hole is not a larger two-flute drill, but a core drill. What we need to make clear in this tip is that the required Speeds and Feeds for enlarging a predrilled hole with either a 3…
End Mill Selection
MILLING; ROUGHING END MILLS, COARSE OR FINE PITCH When should you use a coarse pitch, and when should you use a fine pitch? Roughing end mills with sinusoidal waveform are designed to reduce side pressure and cut the chips into much smaller segments. This reduces chatter, vibration, and deflection, allowing…
Tapping Titanium
Titanium and titanium alloys are most often found in aerospace applications due to its lightweight and high strength. However, other industries are discovering the benefits of titanium as well. One of the more common alloys is Ti 6AL-4V. It is generally machined at a hardness ranging from approx. 28 to…
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