the bolt held--but the force enlarged the bolt counterbore
wall to a size larger than if it were meant for a belted magnum cartridge (shown at right for comparison).
And with the exception of a narrow extractor notch machined through the boltface counterbore
wall, the rim of a chambered cartridge is also enclosed by a solid ring of steel.
Meusburger has launched a range of O-ring counterbores
that it says are especially designed for use in mould and tool making.
Finally, it's off the center for a counterbore
, drill and tap, then slit with a slitting saw and finish up with an end mill.
FBM will detect solid machining features for the chosen FBM operation type, based on selection criteria; machine pockets using 2D roughing, rest mill, and finish operations; automatically support closed, open, nested, and through-pockets and set-the-right-toolpath options; optionally create a separate finish toolpath for floors and walls; identify when external machining is required and enable users to activate or deactivate it; identify when facing is required; create drilled, tapped, counterbore
, and countersink holes; perform deep drilling, spot drilling, pre-drilling, tool selection, and tool creation if needed; provide advanced controls to drill blind, through, co-axial, and split holes; and select the appropriate tools for all operations.
As long as the plug is not engaged with the counterbore
as shown in Figure 5, the "cushion" has no effect.
Configurable heights in 1 mm increments from 3 mm to 20 mm are offered with compact counterbore
design for flush fitting in tight spaces.
A compact counterbore
design for flush fitting the stopper blocks in tight spaces.
This is followed by a two-pass drilling operation to produce the counterbore
and the bolthole.
The outer diameter of the diaphragm is contained by a counterbore
in the valve body, a design that controls diaphragm extrusion and further sustains seal integrity during thermal cycling.
The AD requires measuring the diameter of the hole counterbore
of the outboard idler hinge fitting of the left and right wing flap; the performance of repetitive high frequency eddy current inspections to detect cracks at the flap idler hinge fitting if necessary and replacement of the flap idler hinge fitting with a new like part if any crack is detected.
That doesn't mean later guns without the counterbore
and pinning aren't good.