涨缩补偿推算方法

涨缩补偿推算训练 1.) 补偿定义:

由发料尺寸之板中心向外延伸之总和值.

2.) 数值表示:

2-1) 比例(SCALE) : (基数为1.000000)

1.000300 (拉伸) , 0.999800 (缩短)

2-2) 单位(UNIT) : PPM(百万分之一) (基数为0PPM) **需标示”+” or “-“符号区分(防呆指示)

+300 PPM (拉伸) , -200 PPM (缩短)

2-3) 上述2-1 & 2-2 相对关系:

例:

1.000000 = 0 PPM (1.000000-1.000000 = 0 => 0 PPM)

1.000500 = +500 PPM (1.000500-1.000000 = 0.000500 => +0.000500*106 = +500 PPM)

0.999800 = -200 PPM (0.999800-1.000000 = -0.000200 => -0.000200*106 = -200 PPM)

3.) 推算方式:

例1:

发料尺寸: 35 * 60 (CM) ; 涨缩补偿值:X =>+300PPM(1.000300) Y=>-200(0.999800)

计算:

补偿后: X=> 35*1.000300=35.0105 ; Y=> 60*0.999800=59.988 (CM)

例2: (靶型位置分析)

工单原补偿值: 原X=> +300PPM(1.000300) ; 原Y=>+500PPM(1.000500)

工单铣靶值: X=14.9941” Y=18.685

X-RAY量测值: X1=14.9986” Y1=18.6783”

计算:

判定1.)

*工单铣靶值即为钻孔程序(1:1) ; 实际X-RAY量测值即为内层涨缩值

误差值:

ΔX=> X1-X=14.9986”-14.9941”=0.0045” ; ΔY=> Y1-Y=18.6783”-18.6854”=A.) 钻孔程序补偿值:

判定2.)

*(涨/缩)0.006”以上(以下不补偿)时,仅补偿(涨/缩)0.004”(A级以上客户仅0.003”)

-0.0071”

X轴需再补偿=> 1.000000(0PPM)

Y轴需再补偿=> -0.004”/Y=-0.000214=>1+(-0.000214)=0.999786(-214PPM)

B.) 内层底片补偿值:

ΔX1=> X-X1=14.9941”-14.9986”=-0.0045” ; ΔY1=> Y-Y1=18.6854”-18.6783”=0.0071”

X轴补偿值(工单)=> ΔX1/X+1.000300=1.000000(0PPM)

Y轴补偿值(工单)=> ΔY1/Y+1.000500=1.000880(+880PPM)