Siemens SINUMERIK 840D Instruction sheet

840D/828D

Sinumerik Operate

Operating

Turning

Training documentation

Version 2010.1

Diese Unterlage wurde zu Trainingszwecken erstellt.

Siemens übernimmt bezüglich des Inhalts keine Gewähr.

This documentation was produced for training purposes.

SIEMENS does not accept resposibility for the contents.

840D/828D SINUMERIK Operate Page 1 B500

B500

840D/828D SINUMERIK Operate

Cycles

1 Brief Deskription

Aim of the module:

With the help of this module you will get to know the various cycle parameters under ShopMill and

ShopTurn.

Description of the module:

This module explains the various parameters that are called up in tabular form in the cycle masks. In

the course of this the relationship and the differences of the parameters to the individual cycles and

techniques are pointed out.

B500

B500 Page 2 840D/828D SINUMERIK Operate

Cycles B500

Turning

Abbreviations used Section 3

Milling

Abbreviations used

Section 5

Basic aspects Section 2

Boring

Abbreviations used

Section 4

840D/828D SINUMERIK Operate Page 3 B500

B500

Notes

Section 2

Basic aspects

2. 1 Cycles

Cycles are sub-programs (technology-orientated functions) for the execu-

tion of a repeatedly occurring operation on a work piece.

Cycles can be selected comfortably via Softkeys and can simply be Para-

metered by means of input masks.

Programmed cycles are inserted in G-Code or step-chain-programs as a

program step and can be re-selected and newly set by parameter at any

time.

The following functionality is available both in ShopMill and ShopTurn

Technology-orientated cycle selection by means of Softkeys

Input masks for die cycle parameters (cycle masks) with help pictures

and animations

Context-sensitive online-help for every Input window

Support for the contour input (geometry processor)

B500

B500 Page 4 840D/828D SINUMERIK Operate

Notes

TurningSection 3

Unit

(Thread re-

lief)

Plunge angle

Degrees

α0 Starting angle offset

Degrees

α1 Angle of the tapers

Degrees

α1

(Metal re-

moval)

Angle of the first edge

Degrees

α1

(Back-cut)

Flange angle 1

Degrees

α2

(Metal re-

moval)

Angle of the second edge

Degrees

α2

(Back-cut)

Flange angle 2

Degrees

αP Infeed taper (angle)

Degrees

Allowance

(Metal re-

moval)

Finishing allowance ( only with finishing)

Yes

U1 contour allowance

Selection

(Thread)

Statement of the tabular value, e.g. M10, M12,

M14,…

B1 Width of back-cut

B2 Width of back-cut, top

Machining Roughing

Finishing

Roughing + Finishing

Machining

direction

Turning

(Metal re-

moval part-

ing)

Machining directions

Planar

Longitudinal

Machining

direction

(Thread re-

lief)

Longitudinal

Parallel to contour

840D/828D SINUMERIK Operate Page 5 B500

B500

Notes

Turning Section 3

Unit

Machining

direction

Contour-

turning

(Metal re-

moval)

Planar

Longitudinal

Parallel to contour

From inside outward

From outside inward

From front to rear end

From rear end to front

BL Raw material description (contour, cylinder; al-

lowance)

D Cutting edge number

D Maximum infeed depth (inc) mm

(Thread)

First infeed depth mm

DA Start-changing depth (inc)

DI At 0 continuous cut

DIR

(parting)

Spindle rotation direction

counter-clockwise (CCW)

clockwise (CW)

(Longitudinal

thread)

Infeed taper as a flank (inc)

(Back-cut)

Distance of back-cut (inc)

DP is not displayed when N = 1

DX Maximum infeed depth (only parallel to contour

alternatively to D)

DZ Maximum infeed depth (only for parallel to con-

tour and UX)

Limiting Machining range limitation

Yes

XA: 1st limit XA Ø

XB: 2nd limit XB Ø (abs)

or 2nd limit referred to XA (inc)

ZA: 1st limit ZA

ZB: 2nd limit ZB (abs)

or 2nd limit referred to ZA

B500

B500 Page 6 840D/828D SINUMERIK Operate

Notes

TurningSection 3

Unit

F Feed

mm/min

mm/rev

Form

(Thread re-

lief)

Normal (Form A)

Short (Form B)

(Parting)

Reduced feedrate

mm/rev

(Metal re-

moval)

Plunging feedrate for relief cuts

(Metal re-

moval)

Chamfer (n = 1...3) alternative to R

FS Chamfer width

FS1 Chamfer width 1

FS2 Chamfer width 2

FS3 Chamfer width 3

FS4 Chamfer width 4

FX Feed in X-direction

mm/rev

FZ Feed in Z-direction

mm/rev

G Change of thread pitch per rev.

Thread

(Longitudinal

thread )

Internal thread

External thread

(Taper

thread)

Calculated from thread pitch

(Longitudinal

thread )

Depth of thread obtained from thread tables

Relief cuts

(Metal re-

moval)

Machining the relief cuts

Yes

Location

turning

(Metal re-

moval)

Location of metal removal

right top

right bottom

left top

left bottom

840D/828D SINUMERIK Operate Page 7 B500

B500

Notes

Turning Section 3

Unit

Location

contour-

turning

(Metal re-

moval,

parting)

front

back

internal

external

LR Thread run-out (inc)

LW Thread lead (inc)

Multi-start No

α0 Starting angle offset

Yes

Nr. of thread starts are spread evenly

around the circumference of work piece

(Back-cut)

Number of back-cuts (N = 1...65535)

(Thread)

Nr of thread starts

(Thread)

Number of dummy passes

(Thread re-

lief DIN)

Thread pitch (to be selected from DIN-table) or

entered manually

mm/rev

(Longitudinal

thread )

Selection of the thread pitch/-starts

Thread pitch in mm/rev

Thread pitch in inch/rev

Threads per inch

Thread pitch in modulus

mm/rev

in/rev

threads/"

modulus

R1 Rounding radius 1

R2 Rounding radius 2

R3 Rounding radius 3

R4 Rounding radius 4

R Radius (n = 1...3) alternative to FS

SSpindle speed

revs/min

SR Reduced speed

revs/min

SV Maximum rotary speed for constant cutting

speed

revs/min

B500

B500 Page 8 840D/828D SINUMERIK Operate

Notes

TurningSection 3

Unit

Table Selection of the thread table

without

ISO metric

Whitworth BSW

Whitworth BSP

UNC

T Tool name

(Back-cut)

Back-cut depth Ø (abs) or back-cut depth

referred to X0 (inc)

U1 Contour allowance

U Finishing allowance

UX Finishing allowance in X

UZ Finishing allowance in Z

VConstant cutting speed

m/min

VR Retraction gap (inc)

(Relief cut)

Planar pass Ø (abs) or planar pass (inc)

(Back-cut)

Reference point Ø (abs)

(Relief cut)

Allowance in X Ø (abs) or allowance in X (inc)

(Metal re-

moval

Thread)

End point of the thread Ø (abs) or thread length

(inc)

(Taper

thread)

End point X Ø (abs) or end point referred to X0

(inc)

X1α

(Taper

thread)

Thread taper

Degrees

(Parting cut)

Depth for speed reduction Ø (abs) or depth for

speed reduction referred to X0 (inc)

(Parting cut)

Final depth Ø (abs) or final depth referred to X1

(inc)

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