Codigo CNC Escudo Nacional Mexico

Proyecto Final

Objetivo

Preparar un programa manual en CN para mecanizar la pieza de la figura siguiente. Suponer que cada pasada de desbaste es de 1mm máximo.

Plan general de mecanización

1.- Realizar dibujo del proyecto del escudo nacional en un CAD, en este caso AutoCAD 2005

2.- Adjuntar dimensiones de la placa y realizar el proyecto en programación métrica.

3.- Utilizar algún programa de su elección para realizar la conversión del CAD al CAM y poderlo simular en CNC.

4.- Una vez programado en CNC Simulator, realizar el reporte como en los ejercicios anteriores.

Cálculo de velocidades S y F

Velocidad S

La velocidad S es la velocidad de giro de con que la maquina realiza el agujero en el material, y se obtiene por medio de la siguiente formula:

En donde la CS es la referencia de corte dependiendo del material que se desee cortar, y en nuestro caso es el aluminio y según las tablas de referencia en donde se encuentran estos valores es de 300 sfpm.

el diámetro de la herramienta en milímetros, que en este caso es de T10 = 1mm.

Sustituyendo los valores obtenidos tenemos:

S13 = (300) *4 = 8000

.15

Velocidad F

La velocidad F es la velocidad de avance con que corta la herramienta y es expresada en pulgadas por minuto (ipm). Esta se calcula con la formula siguiente:

“n” es el numero de dientes que tiene la herramienta y en nuestro caso escogimos un herramienta de 4 dientes.

Sustituyendo los valores en la fórmula se obtiene:

F13 = (0.005)(4)( 8000) = 1600 mm/rev

Plan de programación manual

Ejercicio 16 Prog.cnc Realizó: Pedro Muñoz Flores Revisó: Ing. Rodolfo Pinal M

Pieza: Placa Conmemorativa Material: Aluminio Fecha: 30 Noviembre 2009

Proceso N G X Y Z I J K F S T M

10 0 147

20 90 10 6

30 7

40 18 33

50 01 16 90

60

70 27 117 117

80 28.4 117.4

90 28.45 117.42

100 28.5 117.6

110 28.55 117.65

120 28.6 117.7

130 28.65 117.8

140 28.7 117.9

150

160

170

180

190

200

210

220

230

240

250

260

270

280

Codigo cnc

G0 Z147 G

90

T10 M6 M7

M33

M504

M501

M43

M10

(DLY,1)

M95

S18000 M3

Z50

X25.501 Y117.467 Z50

G1 Z-16 F9000

X27.097 F18000

X27.365 Y117.473

X27.611 Y117.489

X27.839 Y117.517

X28.047 Y117.557

X28.235 Y117.607

X28.404 Y117.668

X28.554 Y117.742

X28.685 Y117.825

X28.798 Y117.922

X28.896 Y118.034

X28.978 Y118.159

X29.046 Y118.297

X29.099 Y118.449

X29.137 Y118.617

X29.159 Y118.797

X29.166 Y118.991

X29.159 Y119.176

X29.14 Y119.348

X29.106 Y119.508

X29.059 Y119.655

X28.997 Y119.789

X28.924 Y119.91

X28.836 Y120.019

X28.735 Y120.115

X28.62 Y120.198

X28.489 Y120.272

X28.344 Y120.333

X28.184 Y120.385

X28.009 Y120.424

X27.818 Y120.452

X27.613 Y120.468

X27.392 Y120.474

X25.501

Y117.467

G0 Z50

X24.843 Y113.708

G1 Z-16 F9000

Y121.038 F18000

X27.422

X27.713 Y121.031

X27.984 Y121.006

X28.237 Y120.966

X28.472 Y120.909

X28.686 Y120.837

X28.884 Y120.749

X29.062 Y120.643

X29.222 Y120.523

X29.363 Y120.386

X29.485 Y120.233

X29.589 Y120.065

X29.674 Y119.881

X29.739 Y119.68

X29.786 Y119.464

X29.815 Y119.234

X29.824 Y118.985

X29.814 Y118.73

X29.781 Y118.492

X29.729 Y118.27

X29.655 Y118.065

X29.56 Y117.877

X29.444 Y117.706

X29.307 Y117.552

X29.149 Y117.416

X28.968 Y117.295

X28.767 Y117.191

X28.542 Y117.103

X28.295 Y117.031

X28.027 Y116.975

X27.736 Y116.936

X27.423 Y116.911

X27.088 Y116.903

X25.501

Y113.708

X24.843

G0 Z50

X30.952

G1 Z-16 F9000

Y121.038 F18000

X35.715

Y120.474

X31.61

Y117.749

X35.363

Y117.185

X31.61

Y114.272

X35.838

Y113.708

X30.952

G0 Z50

X37.718 Y114.272

G1 Z-16 F9000

X39.15 F18000

X39.352 Y114.273

X39.542 Y114.276

X39.716 Y114.281

X39.876 Y114.288

X40.022 Y114.297

X40.154 Y114.307

X40.271 Y114.32

X40.376 Y114.335

X40.561 Y114.372

X40.731 Y114.42

X40.882 Y114.479

X41.019 Y114.549

X41.155 Y114.639

X41.283 Y114.74

X41.401 Y114.852

X41.511 Y114.975

X41.61 Y115.11

X41.703 Y115.256

X41.785 Y115.411

X41.859 Y115.579

X41.923 Y115.758

X41.979 Y115.95

X42.027 Y116.154

X42.066 Y116.372

X42.097 Y116.602

X42.117 Y116.844

X42.13 Y117.099

X42.135 Y117.366

X42.13 Y117.621

X42.119 Y117.865

X42.097 Y118.098

X42.069 Y118.322

X42.03 Y118.533

X41.985 Y118.733

X41.931 Y118.922

X41.867 Y119.101

X41.797 Y119.269

X41.718 Y119.426

X41.631 Y119.573

X41.537 Y119.708

X41.433 Y119.833

X41.321 Y119.947

X41.202 Y120.05

X41.075 Y120.142

X40.931 Y120.226

X40.772 Y120.297

X40.597 Y120.354

X40.408 Y120.398

X40.301 Y120.416

X40.177 Y120.432

X40.036 Y120.445

X39.878 Y120.455

X39.703 Y120.464

X39.511 Y120.47

X39.301 Y120.473

X39.075 Y120.474

X37.718

Y114.272

G0 Z50

X39.28 Y121.038

G1 Z-16 F9000

X39.499 Y121.037 F18000

X39.703 Y121.032

X39.893 Y121.025

X40.069 Y121.015

X40.232 Y121.001

X40.379 Y120.984

X40.512 Y120.965

X40.633 Y120.943

X40.85 Y120.888

X41.053 Y120.821

X41.239 Y120.737

X41.411 Y120.64

X41.574 Y120.527

X41.728 Y120.401

X41.872 Y120.261

X42.005 Y120.11

X42.129 Y119.946

X42.242 Y119.769

X42.345 Y119.58

X42.439 Y119.377

X42.521 Y119.164

X42.593 Y118.941

X42.654 Y118.706

X42.704 Y118.463

X42.743 Y118.209

X42.77 Y117.944

X42.787 Y117.67

X42.793 Y117.385

X42.787 Y117.079

X42.769 Y116.786

X42.738 Y116.504

X42.696 Y116.237

X42.641 Y115.98

X42.575 Y115.736

X42.496 Y115.504

X42.405 Y115.285

X42.302 Y115.08

X42.189 Y114.887

X42.063 Y114.71

X41.926 Y114.545

X41.776 Y114.394

X41.616 Y114.256

X41.445 Y114.132

X41.261 Y114.022

X41.094 Y113.943

X40.909 Y113.877

X40.705 Y113.823

X40.483 Y113.78

X40.359 Y113.764

X40.221 Y113.749

X40.069 Y113.736

X39.9 Y113.726

X39.716 Y113.718

X39.518 Y113.713

X39.304 Y113.71

X39.075 Y113.708

X37.06

Y121.038

X39.28

G0 Z50

X44.766 Y117.561

G1 Z-16 F9000

X46.726 F18000

X46.982 Y117.567

X47.218 Y117.583

X47.435 Y117.611

X47.635 Y117.651

X47.816 Y117.701

X47.979 Y117.762

X48.123 Y117.834

X48.247 Y117.918

X48.356 Y118.013

X48.452 Y118.123

X48.531 Y118.248

X48.597 Y118.385

X48.647 Y118.536

X48.684 Y118.702

X48.706 Y118.881

X48.713 Y119.073

X48.704 Y119.253

X48.676 Y119.423

X48.631 Y119.583

X48.566 Y119.736

X48.485 Y119.877

...