Page 12 - YG 2019
P. 12

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              CASE STUDY   DREAM DRILLS-INOX (Reference page : p.111 ~ p131)                                                         CASE STUDY   DREAM DRILLS-ALU (Reference page : p.133 ~ p.141)
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                  90
                                                                                                                                         Surface Roughness of Work Piece

                  80


                  70



                  60
                                                                                                                                                                                                       CUTTING CONDITION

                  50                                                                                                                                                                                   Tools : DREAM DRILLS-ALU
                                                                          CUTTING CONDITION                                                                                                            Size : Ø10
                                                                          Tools : DREAM DRILLS-INOX                                                                                                    Work Material :  •AlSI : 6061
                  40
                                                                          Size : Ø6 x Ø6 x 44 x 82                                                                                                                   •JIS : A6061
                                                                          Work Material :  •AISI :  304                                                                                                              •DIN : AlMgSiCu
                  30                                                                    •JIS : SUS304                                                                                                  R.P.M : 6,367 rev./min.
                                                                                        •DIN : X5CrNi1810                                                                                              SFM : 656 ft/min.
                                                                                             (X4CrNi18-10)                                                                                             Feed : .0157 ~ .0315 inch/rev.
                  20                                                      R.P.M : 3,700 rev./min.                                                                                                      Drilling Depth : 1.77˝
                                                                          SFM : 229 ft/min.                                                                                                            Coolant : Wet cut
                                                                          Feed : .0028 inch/rev.
                  10
                                                                          Drilling Depth : .94˝
                                                                          Coolant : Wet Cut
                   0
                     0                     200                     400                                                               ▶YG-1 (Total Drilling 820 Holes)                   ▶Competitor (Total Drilling 820 Holes)
                                       Drilling (Holes)


             YG-1 (Total Drilling 400 Holes)











             COMPETITOR A  (Total Drilling 400 Holes)











             COMPETITOR B (Total Drilling 400 Holes)
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