The following working units are available for thread operations in the Thread machining group:
Unit Soft key Page
Unit 206 Tapping with a Floating Tap Holder Page 57
Unit 209 Rigid Tapping (also with Chip Breaking)
Page 58
Unit 262 Thread Milling Page 60
Unit 263 Thread Milling / Countersinking Page 62
Unit 264 Thread Drilling / Milling Page 64
Unit 265 Helical Thread Drilling / Milling Page 66
Unit 267 Outside Thread Milling Page 68
D e fining Machining O p erations
Unit 206 Tapping with a Floating Tap Holder Parameters on the overview form:
8T: Tool number or name (switchable via soft key)
8S: Spindle speed [rpm] or cutting speed [m/min or ipm]
8F: Drilling feed rate: Calculate from S multiplied by thread pitch p
8Depth of thread: Depth of the thread.
8Machining positions (see “Defining Machining Positions” on page 121.)
Additional parameters on the tool detail form:
8DL: Delta length for tool T.
8M function: Any miscellaneous function M.
8Spindle: Direction of spindle rotation. As a default, smarT.NC sets M3.
8Tool preselect: If needed, this is the number of the next tool for faster tool change (machine-dependent).
Additional parameters on the drilling parameters detail form:
8None
Globally effective parameters on the global data detail form:
8Set-up clearance
D e fining Machining O p erations
Unit 209 Rigid Tapping
Parameters on the overview form:
8T: Tool number or name (switchable via soft key)
8S: Spindle speed [rpm] or cutting speed [m/min or ipm]
8Depth of thread: Depth of the thread.
8Thread pitch: Pitch of the thread.
8Machining positions (see “Defining Machining Positions” on page 121.)
Additional parameters on the tool detail form:
8DL: Delta length for tool T.
8M function: Any miscellaneous function M.
8Spindle: Direction of spindle rotation. As a default, smarT.NC sets M3.
8Tool preselect: If needed, this is the number of the next tool for faster tool change (machine-dependent).
D e fining Machining O p erations
Additional parameters on the drilling parameters detail form:
8Chip breaking depth: Depth at which chip breaking is to occur.
8Angle of spindle: Angle to which smarT.NC positions the tool before thread cutting: This permits regrooving of the thread, if needed.
8S factor for retraction Q403: Factor by which the TNC increases the spindle speed—and therefore also the retraction feed rate—when retracting from the drill hole.
Globally effective parameters on the global data detail form:
8Set-up clearance
82nd set-up clearance
8Retraction value for chip breaking
8Feed rate for traversing between machining positions
D e fining Machining O p erations
Unit 262 Thread Milling
Parameters on the overview form:
8T: Tool number or name (switchable via soft key)
8S: Spindle speed [rpm] or cutting speed [m/min or ipm]
8F: Feed rate for milling
8Diameter: Nominal diameter of the thread.
8Thread pitch: Pitch of the thread.
8Depth: Depth of thread.
8Machining positions (see “Defining Machining Positions” on page 121.)
Additional parameters on the tool detail form:
8DL: Delta length for tool T.
8DR: Delta radius for tool T.
8M function: Any miscellaneous function M.
8Spindle: Direction of spindle rotation. As a default, smarT.NC sets M3.
8Tool preselect: If needed, this is the number of the next tool for faster tool change (machine-dependent).
D e fining Machining O p erations
Additional parameters on the drilling parameters detail form:
8Threads per step: Number of thread revolutions by which the tool is offset.
Globally effective parameters on the global data detail form:
8Set-up clearance
82nd set-up clearance
8Positioning feed rate
8Feed rate for traversing between machining positions
8Climb milling, or
8Up-cut milling
D e fining Machining O p erations
Unit 263 Thread Milling / Countersinking Parameters on the overview form:
8T: Tool number or name (switchable via soft key)
8S: Spindle speed [rpm] or cutting speed [m/min or ipm]
8F: Feed rate for milling
8F: Countersinking feed rate [mm/min] or FU [mm/rev]
8Diameter: Nominal diameter of the thread.
8Thread pitch: Pitch of the thread.
8Depth: Depth of thread.
8Countersinking depth: Distance between the top surface of the workpiece and the tool tip during countersinking.
8Clearance to side: Distance between tool tooth and the wall.
8Machining positions (see “Defining Machining Positions” on page 121.)
Additional parameters on the tool detail form:
8DL: Delta length for tool T.
8DR: Delta radius for tool T.
8M function: Any miscellaneous function M.
8Spindle: Direction of spindle rotation. As a default, smarT.NC sets M3.
8Tool preselect: If needed, this is the number of the next tool for faster
D e fining Machining O p erations
Additional parameters on the drilling parameters detail form:
8Depth at front: Depth for sinking at front.
8Offset at front: Distance by which the TNC moves the tool center out of the hole during countersinking at front.
Globally effective parameters on the global data detail form:
8Set-up clearance
82nd set-up clearance
8Positioning feed rate
8Feed rate for traversing between machining positions
8Climb milling, or
8Up-cut milling
D e fining Machining O p erations
Unit 264 Thread Drilling / Milling Parameters on the overview form:
8T: Tool number or name (switchable via soft key)
8S: Spindle speed [rpm] or cutting speed [m/min or ipm]
8F: Feed rate for milling
8F: Drilling feed rate [mm/min] or FU [mm/rev]
8Diameter: Nominal diameter of the thread.
8Thread pitch: Pitch of the thread.
8Depth: Depth of thread.
8Total hole depth: Total hole depth.
8Plunging depth for drilling
8Machining positions (see “Defining Machining Positions” on page 121.)
Additional parameters on the tool detail form:
8DL: Delta length for tool T.
8DR: Delta radius for tool T.
8M function: Any miscellaneous function M.
8Spindle: Direction of spindle rotation. As a default, smarT.NC sets M3.
8Tool preselect: If needed, this is the number of the next tool for faster tool change (machine-dependent).
D e fining Machining O p erations
Additional parameters on the drilling parameters detail form:
8Chip breaking depth: Depth at which the TNC is to carry out chip breaking during drilling.
8Upper adv. stop dist.: Set-up clearance for when the TNC returns the tool to the current plunging depth after chip breaking.
8Depth at front: Depth for sinking at front.
8Offset at front: Distance by which the TNC moves the tool center from the hole center
Globally effective parameters on the global data detail form:
8Set-up clearance
82nd set-up clearance
8Positioning feed rate
8Retraction value for chip breaking
8Feed rate for traversing between machining positions
8Climb milling, or
D e fining Machining O p erations
Unit 265 Helical Thread Drilling / Milling Parameters on the overview form:
8T: Tool number or name (switchable via soft key)
8S: Spindle speed [rpm] or cutting speed [m/min or ipm]
8F: Feed rate for milling
8F: Countersinking feed rate [mm/min] or FU [mm/rev]
8Diameter: Nominal diameter of the thread.
8Thread pitch: Pitch of the thread.
8Depth: Depth of thread.
8Countersink: Select whether countersinking occurs before or after thread milling.
8Depth at front: Depth for sinking at front.
8Offset at front: Distance by which the TNC moves the tool center from the hole center
8Machining positions (see “Defining Machining Positions” on page 121.)
Additional parameters on the tool detail form:
8DL: Delta length for tool T.
8DR: Delta radius for tool T.
8M function: Any miscellaneous function M.
D e fining Machining O p erations
Additional parameters on the drilling parameters detail form:
8None
Globally effective parameters on the global data detail form:
8Set-up clearance
82nd set-up clearance
8Positioning feed rate
8Feed rate for traversing between machining positions
D e fining Machining O p erations
Unit 267 Thread Milling
Parameters on the overview form:
8T: Tool number or name (switchable via soft key)
8S: Spindle speed [rpm] or cutting speed [m/min or ipm]
8F: Feed rate for milling
8F: Countersinking feed rate [mm/min] or FU [mm/rev]
8Diameter: Nominal diameter of the thread.
8Thread pitch: Pitch of the thread.
8Depth: Depth of thread.
8Machining positions (see “Defining Machining Positions” on page 121.)
Additional parameters on the tool detail form:
8DL: Delta length for tool T.
8DR: Delta radius for tool T.
8M function: Any miscellaneous function M.
8Spindle: Direction of spindle rotation. As a default, smarT.NC sets M3.
8Tool preselect: If needed, this is the number of the next tool for faster tool change (machine-dependent).
D e fining Machining O p erations
Additional parameters on the drilling parameters detail form:
8Threads per step: Number of thread revolutions by which the tool is offset.
8Depth at front: Depth for sinking at front.
8Offset at front: Distance by which the TNC moves the tool center from the stud center
Globally effective parameters on the global data detail form:
8Set-up clearance
82nd set-up clearance
8Positioning feed rate
8Feed rate for traversing between machining positions
8Climb milling, or
8Up-cut milling