1. USING THE COMPLEX LATHE
Sumariyanto: 2007
FOLLOW THE INTERNATIONAL STANDARD

2. THE LEARNING PURPOSES Basic competence
Follow the international standard
Students are expected to:
Identify the tools used based on the international standard

3. CHOOSING THE CUTTING TOOLS
The purpose of choosing the cutting tools:
Able to choose the cutting tools that suitable
with the needs in complex lathe working

4. CHOOSING THE CUTTING TOOLS
Cutting tool should have the following criteria:
Hard and strong
High temperature proof
Toughness
Stand on worn out

5. The geometric of an HSS chisel.
HOW TO CHOOSE THE CUTTING TOOL
The geometric of chisel must be matched with the pieces materials
The kinds of chisel point:
1. Rake angle
2. Clearance angle
3. Cutting edge angle
The geometric of an HSS chisel.

6. The geometric on sticking cutter
Kalpakjian
The geometric on sticking cutter

7. RIGHT-HAND TOOL AND LEFT-HAND TOOL
The cutting edge of hand tool can be identified as followed:
Right-hand tool
Left-hand tool,

8. TOOL HOLDERS Tool hoolders purphose :
To hold the HSS to avoid the trembles while lathing process

9. The sticking chisel (chisel holders).
TOOL HOLDERS
The sticking chisel (chisel holders).

10. INSERT TOOL (VIDEO)

11. SHAPED CHISEL The function of Shaped Chisel :
To form the object expected.
a square chisel is for making cleft on silinder objects
Radius Chisel

12. TRIAGLE TREAD CHISEL The function of threading machine :
To make a treads, both single or doubled
The treading machine hasa chip point, and has their own radius curvature shape.

13. SQUARE TREADING CHISEL
A Square Threading Chisel

14. THE FUNCTION OF INSIDE CHISEL (BORING)
To make a hole in the silinder

15. THE LATHING PLAN AND CALCULATION
The purpose
Able to plan and calculate the lathing process

16. THE LATHING PLAN AND CALCULATION
The element of lathing can be calculated by using the formula below:
working pieces :
do = diameter before(mm)
dm = last diameter (mm)
lt = the cutting length (mm)
Xr = The angles of lathe
machine:
a = The depth (mm)
f = The movement (mm/turning)
n = The main lead
turning (Rotation / minute)

17. FORMULA d = average diameter pieces ( (do+dm)/2 ) (mm)
Cutting speed
d = average diameter pieces
( (do+dm)/2 ) (mm)
n = Main lead turning(put/menit)
Constanta = 3,14
Cutting time
The earnings speeds
A = a.f mm2
The feeding speed

18. REFERENCES
DeGarmo: E.P. DeGarmo et al, Materials and Processes in Manufacturing, Wiley, 2003.
Kalpakjian:
Sumariyanto Bubut Dasar. Malang: PPPPGT Malang
Tim Fakultas Teknik Universitas Negeri Yogyakarta Penggunaan dan Pemeliharaan Alat Ukur. Yogyakarta: Direktorat Pendidikan Menengah Kejuruan, Depdiknas.