Page 181 - Pafana

III. NARZĘDZIA OBROTOWE ROTARY TOOLS ОБОРОТНЫЕ ИНСТРУМЕНТЫ
III. NARZĘDZIA OBROTOWE ROTARY TOOLS ОБОРОТНЫЕ ИНСТРУМЕНТЫ

wiertła składane / indexable insert drills / сверла сборные
wiertła składane indexable insert drills сверла сборные
instruction of applications indexable insert drills - Pafana
instruction of applications indexable insert drills - Pafana

1. Indexable inserts drills produced by PFN PAFANA S.A. are modern cutting tools destined to cutting holes,
turning and internal turning on machine tools having the large rigidity, and especially on modern CNC cutting
machine tools. III.

2. Indexable inserts drills are destined to drill holes in full material. In each case of cutting one ought to
assure rigid clamping system / cutting workpiece and tool /, strong, internal providing of coolant system
and the possibility of good chips removal. With these drills holes of about the depth 2xD, 3xD / D - diameter
of drill / can be made. Optimum - working conditions of these tools are: rigid system / machine tool - clamping
system - workpiece / and axis of drill placed horizontally. Face surface of workpiece should be flat and
perpendicular to axis of drill. Admissible is not large unperpendicularity /2°/, but then necessary is reduction
of feed even for 70%. One ought to avoid drillings in material, wherein already exist transverse holes,
perpendicular to the axis of drill / maximum admissible diameter of these holes is 1/5 diameter of drill /
During passages by through this type of discontinuity of material one ought to reduce feed about 60-70%.
In cases of making difficult chips removal one ought to use cycle chips removal /cyclical withdrawing of tools
from the hole during drillings/ about frequency depended on precise conditions of cutting. Drilling without cycle
of chips removal enables, except from shortening of cutting time, to obtain less roughness of cutting surface.
Indexable inserts drills enables, except from drilling, performance with the same tool, internal turning, facing
operation / facing / and external turning.

3. In both seat / internal and external / we clamp the same indexable inserts - WCMT03..., WCMT04...,
WCMT05..., WCMT06..., WCMT08... - indexable inserts of PAFANA are recommended *.
Accessible indexable inserts to machining steel and stainless steels ( see page No 177).

4. Before replacement of inserts one ought to clean seat. In order to clamp the insert one ought to use only original
screws provided by PAFANA. In case of damage or excessive wear of screw one ought to replace a new one.
After tightening up a screw, insert should be adjoined to all base surfaces of the seat.

5. Cutting parameters should be chosen to concrete conditions of cutting in dependence from rigidity of system
/ machine tool - clamping system - workpiece / and sort of cutting material / speed 80-180 m/min., feeds
0, 08-0, 18 mms/rev./ proper breaking chip is demanded / in case of too long chips one ought to increase feed on
turn and decrease cutting speed /,what will assure comfortable process of cutting.

6. Before beginning of drilling one ought to turn on coolant system supply. In case of machining with round
object / turning lathe/ in final phase of the drilling, waste material is created which can be thrown out from
cutting zone. In typical machine tools possessing required protection of holders, there is no threat of using.

NOTE! - *- use of indexable inserts other producers can be effective with the negative working of tool.

info.tech. ® 179
tech.info. 177-180
тех.инфо. 256