Page 36 - 《橡塑技术与装备》英文版2025年12月
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HINA R&P  TECHNOLOGY  AND EQUIPMENT




             cutting fluid, and enter the guide hole at a lower speed and   standard facing the operator, enabling turning from right to left;
             feed. When it is 1~2 mm away from the bottom of the hole,   B corresponds to T01.02, with the indexing angle reversed,
             set the speed and feed to normal values for machining, turn   facing away from the operator, enabling turning from left to
             on high-pressure internal cooling, and after drilling, turn off   right.
             the cutting fluid and retract the tool. The basic action code is
             shown in Figure 11.
                 The requirements for the original cycle and the gun
             drill cycle are different.Some standard requirements for gun
             drill pre-drilling are shown in Figure 12. Based on this table,
             adjustments can be made according to actual needs.


             9  Processing parameters                                          Figure 13  T01.01
                 Table 6 lists the linear speed and feed per revolution
             or feed per tooth of the cutting tool. These values are based
             on the rotor shaft material being 45 steel, with a tempering
             HB220~250, a maximum outer diameter of D520 mm, and
             a length of 4,000 mm. Due to potential differences in cutting
             tools and machining conditions, the machining parameters are
             for reference only.
                       Table 6  Processing parameters
                  Number      Name         Vc      F
                   T1      CNMG120408-PR   200     0.3
                   T2     DNMX150608-WF    250    0.12
                   T2      DNMG150608-PP   250    0.12                         Figure 14  T01.02
                   T3         6R0.2        100     0.3
                   T4          R2.5        100     0.1         10.2  Thread machining
                   T5     trapezoidal thread P6  100  6
                   T6        D60U drill    150    0.15             The following code represents the basic format of
                   T7      D15 alloy drill bit  80  0.1        the thread cycle for MAZAK. The table details the control
                   T8       D15 gun drill  80     0.05
                   T9       D24.5U drill   120     0.1         methods for the tool handle hand position and direction when
                   T10       D10 alloy     50     0.05         machining trapezoidal and metric external threads. The code
                   T11      D10 gun drill  50     0.05
                   T12        Rc3/4                            below is for machining right-hand threads using the same tool.
                                                               It can be derived to obtain the directions for machining left-
                 Rotors are classified into shaft-through and integral types.   hand threads, right-hand threads, and for right-handed tools
             When machining an integral rotor, the axle, due to the irregular   machining both left-hand and right-hand threads.
             surface of the rotor body, generates significant centrifugal
                                                                   T28.01
             force during turning. Depending on the actual situation, it is   G97 S80 R1
             necessary to appropriately reduce the linear velocity to around   G0 G43 P1 Z-200.
             Vc150-200.
                                                                   G276 P020030 Q.1 R.1
                                                                   G276 X300. Z-100. P3.5 Q.3 F6.
             10  Software, hardware and NC                         T28.02
             10.1  Tool setting                                    G97 S80 R1
                 Turning tools are divided into left-hand, right-hand, and   G0 G43 P1 Z-100.
             center-mounted types. Our tools are uniformly left-hand tools.   G276 P020030 Q.1 R.05
             ID code A corresponds to T01.01, with the indexing angle   G276 X300. Z-200. P3.5 Q.3 F6.

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