Holemaking

Near-Dry Machining Tackles Large-Diameter Work

Tru-Cut Manufacturing's foray into near-dry cutting began approximately 5 years ago. At that time, the masonry drill bit producer based in Cary, Illinois implemented the Accu-Lube line of lubricants and equipment from ITW Rocol (Glenview, Illinois) to achieve safer, more profitable metalworking operations.

Chip-Free Drilling Process Creates Holes And Bushings

This chip-free drilling technique can create both a hole and support bushing in thin-walled parts in one machining operation.

Marine Supplier Meets Tricky Tolerances With Presetter And Measuring Machine

For its supercharged six-cylinder Verado outboard motor range, Mercury Marine (Fond du Lac, Wisconsin) set and met multiple new tolerances. One of the trickier tooling tolerances had to do with the valve seat boring tools. The company's Mazak machining centers incorporate 15 of these long, narrow, multi-insert tools to finish machine the 24-valve seats, intake and exhaust in the one-piece aluminum cylinder head. Because valve clearances are factory-adjusted and are designed to remain within tolerance for several thousand hours, close machining tolerances are essential.

Turning Without Rotating The Part

For large or unbalanced parts, this machining center can perform turning or boring operations using its programmable U axis.

A Double-Depth Hole Machining Custom Macro

 All machining center controls come with a set of helpful hole-machining canned cycles. Most control manufacturers use G codes from G81 through G89 to name them (G81 for drilling, G82 for counter-boring, G83 for peck drilling and so on).

The Multi-Process Machine Mindset

Installing a machine tool that combines milling, turning, boring and other processes changed this job shop’s outlook.

Twist Drill Point Grinding And Inspection

Small-Hole Drilling

Milling On A Grinding Machine

A grinding machine is not a machining center, but it can sometimes take on milling and drilling (or even turning) to make the overall process more efficient.

Drill And Deburr In One Pass