高手救命，划分网格一执行merge出错。

出现很多次了，一直没有解决，但是结果都不是很正确，也知道要执行merge，但总是一执行就出错，然后ANSYS就自动关闭了，我没有搞什么特殊的操作啊！！就是建立了一个三维模型，选择映射的网格划分方法，为什么一执行merge就出问题呢？
Finish
/clear
/TITLE,Arc_Welding_Simulation
/REPLOT
/PREP7
ET,1,SOLID69
MPTEMP,1,273,2500,5000,7500,10000,12500
MPTEMP,7,15000,17500,20000
MPDATA,DENS,1,1,1.67,0.2,0.1,0.07,0.04,0.03
MPDATA,DENS,1,7,0.02,0.015,0.014
MPDATA,KXX,1,1,0,0.1,0.2,0.3,0.6,1.6
MPDATA,KXX,1,7,2.4,2.0,2.2
MPDATA,RSVX,1,1,1000,100,1,1.3e-3,3.3e-4,1.6e-4
MPDATA,RSVX,1,7,1.2e-4,9.8e-5,8.5e-5
MPDATA,C,1,1,521,521,521,600,1250,6000
MPDATA,C,1,7,10000,4000,2500
MPDATA,VISC,1,1,2e-5,7e-5,1e-4,2.2e-4,2.7e-4,2e-4
MPDATA,VISC,1,7,6e-5,3e-5,2.6e-5
MPDATA,DENS,2,,7200
MPDATA,KXX,2,,20
MPDATA,RSVX,2,,1/770000
MPDATA,DENS,3,,19350
MPDATA,RSVX,3,,0.0000000528
MPDATA,KXX,3,,173
MPDATA,MURX,1,,1
MPDATA,MURX,3,,1
/REPLOT,RESIZE
TOFFST,0
K,1,0,0,0,
k,2,0.01,0,0,
K,3,0.0002,0,0,
K,4,0.0016,0,0,
K,5,0,0.005,0,
K,6,0.0002,0.005,0,
K,7,0,0.005+0.0014*sqrt(3),0,
K,8,0.0016,0.005+0.0014*sqrt(3),0,
K,9,0.01,0.005+0.0014*sqrt(3),0,
K,10,0.0016,0.005,0,
K,11,0.01,0.005,0,
A,5,6,8,7
A,1,3,6,5
A,3,4,10,6
A,6,10,8
A,8,9,11,10
A,10,11,2,4
VROTAT,1,2,3,4,5,6,1,7,90,,
VGLUE,ALL
LGLUE,ALL
AGLUE,ALL
/PNUM,KP,1
/PNUM,AREA,1
/VIEW,-1,1,1,1
ESIZE,0.0005,0,
MSHKEY,1
VMESH,ALL
然后就执行MERGE操作，马上出现一堆错误，然后ANSYS就自动关闭了。