Cutting data calculator
Application
With the cutting data calculator you can calculate the spindle speed and the feed rate for a machining process. You can load the calculated values into an opened feed rate or spindle speed dialog box in the NC program.
In OCM cycles (#167 / #1-02-1) the OCM cutting data calculator is available.
OCM cutting data calculator (#167 / #1-02-1)
Requirement
- Milling operation FUNCTION MODE MILL
Description of function
- The Cutting data calculator window
On the left side of the cutting data calculator you enter the information. On the right side the control displays the calculated results.
If you select a tool defined in the tool management, the control automatically applies the tool diameter and number of teeth.
You can calculate the spindle speed as follows:
- Cutting speed VC in m/min
- Spindle speed S in rpm
You can calculate the feed rate as follows:
- Feed per tooth FZ in mm
- Feed per revolution FU in mm
Or you can use tables to calculate the cutting data.
Applying values
After the cutting data have been calculated, you can specify which values the control should apply.
You can choose among the following options for the tool:
- Tool number
- Tool name
- Do not apply values
You can choose among the following for the spindle speed:
- Cutting speed (VC)
- Spindle speed (S)
- Do not apply values
You can choose among the following for the feed rate:
- Feed per tooth (FZ)
- Revolution feed (FU)
- Contouring feed rate (F)
- Do not apply values
Calculation with tables
You must define the following in order to calculate the cutting data with tables:
- Workpiece material in the table WMAT.tab
- Tool cutting material in table TMAT.tab
- Combination of workpiece material and cutting material in the cutting data table *.cut or in the diameter-dependent cutting data table *.cutd
- Tip
Using the simplified cutting data table, you can determine speeds and feed rates using cutting data that are independent of the tool radius (e.g., VC and FZ).
If you require specific cutting data depending on the tool radius for your calculations, use the diameter-dependent cutting data table.
- Parameters of the tool in tool management:
- R: Tool radius
- LCUTS: Number of cutting edges
- TMAT: Cutting material from TMAT.tab
- CUTDATA: Table row from the *.cut or *.cutd cutting data table
Opening the cutting data calculator
To open the cutting data calculator:
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Calculating the cutting data with tables
The following prerequisites must be fulfilled in order to calculate the cutting data with tables:
- The WMAT.tab table exists
- The TMAT.tab table exists
- The *.cut or *.cutd table exists
- Tool material and cutting data table are assigned in the tool management
To calculate the cutting data with tables:
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Note
Use the +, -, *, /, (, and ) keys for calculations in the numerical input fields.