Mitsubishi MWE „Honing, Fig.11, Fig.12, Fig.13, table, fig.10, fig.11, fig.12, fig.13

－0.03～0.03

Ypart

0.1～0.2

X part

•Adjust the wheel position while grinding so that the measurements of the thinning (X part, Y part) will be the same as those of fig.10. (Dotted lines show the final positions.

•(Grinding tip) To make the task easy, grind the two cutting edges alternately, using a mirror to check the configuration while grinding.

Honing

		• After grinding thinning face, grind honed
Fig.11	R（0.1～0.15）×φD）	edges. This is the last procedure for
	R（0.1～0.15）×φD）	regrinding.
		regrinding.
		• First, as shown in fig.11, grind the edge
		at the cross section of the thinning edge
		and major cutting edge with diamond file
		until it becomes R-shaped.
		• Appropriate R size is approximately (0.1
		~ 0.15) x ØD.
Fig.12		• As shown in fig.12, thoroughly grind
Fig.12		honed edges on both sides evenly. First,
		honed edges on both sides evenly. First,
		use a diamond file with grain size #400
		for honing, and finish by using a hand lap
		with grain size #1500.

•As shown in fig.13, honing angle is 25°.

•Change honing width inb accordance with tool diameter (Please refer to table

25°

Rake face

Relief face

1).

Table.1

Tool diameter φD

φ5 less

Unit (mm)

Honing width W

0.025～0.05

Fig.13

Center line of the drill

φ5 over φ10 less

φ10 over φ20 less

0.05～0.1

0.10～0.15

Honing

Fig.11

Fig.12

Fig.13

Honing