Page 257 - ISCAR(MILLINGCATALOG 38_2021)

Recommended Cutting Conditions for Side Plunging

Plunging Cycle:

Step 1 Step 2 Step 3
Plunge in (axially-Z direction) Back stroke (rapid) at an angle b≥2° Move to the next cycle PLUNGING CUTTERS

Control movement
Rapid movement β
β - Exit angle from the material

TANGPLUNGE - SIDE PLUNGING
Workpiece Material
ISO
class Typical Representative Carbide
DIN/ ISCAR mat. Hardness Insert grade Cutting
ISO group* AISI/SAE/ DIN HTP LN… for speed Vc, Feed Fz,
513 Description ASTM W.-Nr. HB type inserts m/min mm/t Coolant
Non-alloy steel and cast 4 1060 1.1221 180-200 80-130 0.12-0.15
steel, free cutting steel
Low alloy and cast steel (less 8 4340 1.6582 260-300 80-120 0.1-0.15
than 5% of alloying elements) IC830/ Air blow
IC928
Low alloy and cast steel (less HRC
P 9 3135 1.571 …ER 80-120 0.08-0.15
than 5% of alloying elements) 35-40**
High alloy steel 10 H13 1.2344 200-220 80-100 0.08-0.12
IC830/
Martensitic s.s. 12 420 1.4021 200 IC330/ 80-100 0.08-0.12 Air blow/wet
IC328
IC830/
M Austenitic s.s. 14 304L 1.4306 200 …ER IC330/ 60-80 0.08-0.1 Wet (emulsion)
IC328
0.6025
Grey cast iron 16 Class 40 (GG25) 250 150-200 0.12-0.2
K …ER IC810/ Air blow
IC910
Nodular cast iron 17 Class 0.7050 200 100-180 0.1-0.17
65-45-12 (GGG50)
Ni-based HTSA 34 Inconel 718 2.4668 350 20-25 0.07-0.1
S Ti6Al4V HRC …ER IC328/ Wet (emulsion)
Ti alloys 37 3.7164 IC330 35-40 0.07-0.1
(Grade 5) 34-36
HRC 45 IC808/
H Hardened steel 38 4340 1.6582 …ETR 70-100 0.08-0.1 Air blow
max IC908
The table data refers to a cutter overhang of up to 4D (D-the diameter of a cutter)
* ISCAR material group in accordance with VDI 3323 standard
** Quenched and tempered
Table 1: L1 as a Function of the Width of Cut and Cutter Diameter

ae - Cutter Diameter (mm)
Width of 50 52 63 66 80 100
L1max = 2x Dxae-ae2 Plunge (mm) L1max - Step (effective diameter)
1 14.0 14.3 15.75 16.1 17.8 19.9
3 23.8 24.3 26.8 27.5 30.4 34.1
5 30.0 30.6 34.0 34.9 38.7 43.6
6 32.5 33.2 37.0 37.9 42.1 47.5
7 34.7 35.5 39.6 40.6 45.2 51.0
8 36.6 37.5 41.9 43.0 48.0 54.3
ae 9 38.5 39.3 43.10 45.3 50.5 57.2
10 40.0 41.0 46.0 47.3 52.9 60.0
11 41.4 42.5 47.8 49.2 55.1 62.6
L1 12 42.7 43.8 49.5 50.9 57.1 65.0
L1- Side step over 13 43.8 45.0 51.0 52.5 59.0 67.3
ae- Width of plunge 14 - - 52.4 53.9 60.8 69.4

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