BIG DAISHOWA High Performance Tooling Solutions Vol 1

LARGE DIAMETER BORING HEADS

ROUGH BORING COMPONENT SELECTION The table below determines the components such as extension slide (1), clamp bases (2) and insert holders (3) for each diameter range (ØD) and shows in which position (1 or 2) the clamp bases (2) have to be mounted on the extension slide (1). Further, this table also serves for the coarse diameter setting of the cutting edges by means of the scale on the clamp base (2) and the marking (4) on the insert holder (3). The required scale value is calculated by the difference between bore diameter and correction value ( α ). The insert holder has to be adjusted to the scale value. See example below.

ØD (Pos. 2)

1 2 3 4 5

ØD (Pos. 1)

1 2 3 4 5

1 2 3 4 5

CKB7

CKB6

Scale Factor α

Extension Slides

Clamp Bases

Insert Holders

ØD

Position

1 2 3 4 5

1 2 3 4 5

1 2 3 4 5

7.756-9.252 9.134-10.630 10.512-12.008 11.890-13.386 13.268-14.764 14.646-16.142 16.024-17.520 17.402-18.898 18.780-20.276 20.157-21.654 21.535-23.031 22.913-24.409

1 2 1 2 1 2 1 2 1 2 1 2

7.874 9.252

10.318.222 10.318.205*

10.630 12.008 13.386 14.764 16.142 17.520 18.898 20.276 21.654 23.031

10.318.223 10.318.206*

10.318.224

10.318.250 (Inch) 10.318.240 (Metric)

10.637.9xx (See Pg. 498)

10.318.225

10.318.226

10.318.227

Example: Diameter Setting According to Scale *For use with ISO40 and HSK-A63 tapers

ØD: 18.020 Extension Slide: 10.318.225

Position: 1 Correction Value α : 17.520

Scale Value: ØD- α =18.020-17.520=.500

FULL PROFILE ROUGHING The VPS boring process enables large material additions (up to 60 mm in diameter) to be bored in one operation with a relatively low drive power. Set cutting edge A to the drilling diameter and cutting edge B according to the material allowance according to the table.

A

Material Allowance (in Ø)

Cutting Edge A (in Ø)

Cutting Edge B (in Ø)

.866-1.177 1.181-1.413 1.417-1.650 1.654-1.886 1.890-2.122 2.126-2.362

D-.079 D-.236 D-.472 D-.709 D-.945 D-1.181

A

B

ØD

Cutting Data Vc (SFM)

fn (IPR)

B

330-594

.004-.008

499

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