1. OPERATING BASIC NC/CNC MACHINE
BASIC COMPETENCE : OPERATING CNC FRAIS MACHINE

2. Operating CNC Frais Machine
Learning Activity 5
Operating CNC Frais Machine
a. Learning Objectives:
Students able to:
Enter CNC program manually into frais machine
Edit CNC program entered into machine memory
Run CNC program on frais machine to make simple product that fulfill specified procedure and standard operation

3. ENTERING PROGRAM MANUALLY
Enter CNC program manually
Use letter and alphanumeric buttons
The way to enter program manually see M7. 16A module

4. THE EXAMPLE OF CNC FRAIS PROGRAM

5. EDITING PROGRAM Edit program If occurred mistyping, retype with:
a) Move cursor on characters (number or letter) to be changed with “FWD”,”REV”,””
b) Delete mistyping character with “DEL” button, then type the correct character and press “INP” button.

6. PROGRAM RUNNING TEST Program running test
Program running test program is a command to read and run CNC program without knife and main axis moving
The target of program running test is to recognize several errors in program, namely:
Language error, program format, and mathemamtic
Mistyping in entering data manually
Error reading on entering data through storage or cable

7. CUTTER TRAJECTORY / CUTTING TOOL TEST
Knife trajectory / clipper test conducted with running without work object (dry-run). conducting this test can be detected:
a) Error in cuter motion direction
b) Error in cutter motion type, feeding motion or
positioning

8. RUNNING PROGRAM Running program
Running program in CNC lathe conducted with standard and job conditions, namely:
Work object installation
Cutting tool location at early position
Running program conducted after program running test, cuttting tool trajectory test, and cutting tool compensation test.

9. THE ANALYSES OF PRODUCT FAILURE
The analyses is conducted when there is quality deviation of product from specified standard. It is conducted for:
Error in dimension and the cause
Error in position and the cause
Error in surface quality and the cause

10. CNC OPERATION

11. CNC OPERATION

12. SUMMARY Summary 4 Procedures to run CNC are:
1) Program running test, to know:
a) Error in language program and format
b) Mistyping in entering data manually
c) Error reading on entering data through storage or cable
2) Cutting tool trajectory / cutting tool test, to know:
a) Error in chisel motion direction
b) Error in chisel motion type

13. SUMMARY 3) Cutting tool compensation data test 4) Running Program
5) The analyses of product failure consist of:
Error in dimention and the cause
Error in position and the cause
Error in surface quality and the cause

14. TASK
TASK 4
Take one CNC program. Read it and enter into mahcine memory
Do correction if there is any mistyping in program
Do program running test by:
Putting cursor on line N00
Pressing “-” (negative) button, cursor will move to next row. If the cursor stops on certain block, mean there is program error. Try to fix it and consult to your teacher

15. FORMATIVE TEST Formative Test 4 1. Program test conducted to get:
a. Data quality program
b. Data duration program
c. data operational security program
d. All the answers are correct
2. Mistyping when entering program can be known with:
a. Program running test
b. Program testing
c. Product testing
d. product quality produced

16. FORMATIVE TEST
3. To know accuracy position of chisel surface conducted:
a. cutter compensation test
b. cutter trajectory test
c. program test
d. All the answers are correct
4. To know the movement cutter the retalif to work piece done:
a. chisel compensation test
b. program running test
c. cutter trajectory test

17. FORMATIVE TEST 5. The Last step in testing program is:
a. running program
b. analyses of product failure
c. Product testing
d. All the answers are correct
6. Analyses of product failure conducted if there is:
a. Error in dimension
b. error in position
c. error in surface quality
d. all the answers are coorect
7. Quality of CNC program technically means:
standardized data of machinery technology
standardized product output quality
standardized structure of machinery process
all the answers are correct