PPT on HMT Ajmer (Mechanical Dept.)

Summer Traning Presentation on HMT Machine Tools Ltd.

SUBMITTED TO:Department of Mechanical Engg.Bhagwant University, Ajmer (Raj.)

SUBMITTED BY: Ashu Ranjan B.Tech (Mechanical Engg.)

About HMT Established in 1953.

HMT Machine Tools Ltd was formed as a wholly owned subsidiary of HMT Limited in August 1999.

Over the years diversified into Watches, Tractors, Printing Machinery, Metal Forming Presses, Die Casting & Plastic Processing Machinery, CNC Systems & Bearings.

Manufactured and supplied over 100,000 machines till date for domestic market.

Exported over 18,000 machines.

HMT,AJMER

HMT AJMER PLANT WAS ORIGNALLY ESTABLISHED AS “MACHINE CORPORATION OF INDIA LIMITED” IN JANUARY1967. THIS UNIT WAS SUBSEQUENTLY MERGED WITH HMT LIMITED ON 1 APRIL,1975.

HMT UNITS IN INDIA

Topics to be Covered Part Design Tooling Design Machine

•MACHINE TOOL DEPARTMENT•TRACTOR DEPARTMENT•FOUNDRY DEPARTMENT•MAINTENANCE DEPARTMENT•ASSEMBLE DEPARTMENT

Departments

Machine Tools

Machine ToolsDepartments

Heavy Parts &

Tool Room

Small Parts

Pattern & Material Testing

Cnc Assembly

Tractor Hydraulic

It is a system which used to lift the weight using the pressurized hydraulic oil.

The important component of the system are following:-

Hosing Distributer Main shaft Torsion shaft Draft tube Lever with cam Cylinder piston and connecting rod

PATTERN: - PATTERN IS SIMPLY THE REPLICA OF THE DESIRED CASTING.

Pattern Shop

1. WOOD 2. METAL (ALUMINIUM, CAST

IRON, BRONZE)3. THERMOCOL4. RUBBER

Commonly Used Pattern Materials

Match Plate Pattern Cope and Drag Pattern Loose Piece Pattern Gated Pattern Skeleton Pattern Shell Pattern

Types of Patterns Used

Types of Patterns Used

Loose Piece Pattern Gated Pattern

Foundry Shop

Foundry is a shop where metal is melted for casting purpose. The melted metal is poured into the mold and left for sometime for solidification.

HMT has 2 furnaces, One of 5T And other of 3T capacity .

All furnaces are induction type & temperature in the furnaces reaches up to 1400-1450˚C.

Casting

In this process, a liquid material is usually poured into a mould, which contains a hollow cavity of the desired shape, and then allowed to solidify.

Mould

Small Parts

The section is primarily concerned with the manufacturer of small parts of machine tools. The section is further divided into six subsections.

Spindle Section

Gear Section Non Round Section Sheet Metal Section

Turret SectionRound Section

Heavy Parts

It is the shop which gives the shape to the largest castings which comes from the foundry shop after being painted rough.

This Section is divided into two sub-sections:

1. Planning 2. Boring

Planning: In this section, the job planning is one of the basic operations done for machining process.

The figure shows Planning operation on a CNC bed by Plano-Milling Machine.

Boring: Boring is the operation of enlarging an already drilled hole. The holes are predrilled as in casting only.

Plano milling machine

This is similar to a double housing planer but the tool can be milling tool. One of the machines is TNC (three axis turning centre) in which only one axis can be moved at a time. Thus round jobs cannot b machined here.

Another machine is CNC in which two axis can be moved simultaneously to machine round job. The length of the bed is 2800mm.

Maintenance shop

Type of Maintenance: Break-down Preventive ReconditioningImportance of Maintenance: To maintain the accuracy of machine. For the safety of operator. To maintain the efficiency of machine.

CNC TRAIN MASTER MACHINING CENTRE VMC 200T PC

Table size mm 420x125

Max. job weight kg 20

Axes travel – Longitudinal mm 200

Axes travel – Cross mm 125

Axes travel – Vertical mm 200

Spindle motor kW 0.44 DC

Feed rate mm/min 2-550

Rapid traverse rate mm/min 700

Feed rate mm/min 2-550

Spindle taper ISO 30

Spindle speed range (stepless) rpm 200-2000

An economical and

user-friendly PC based system to meet training requirements in

CNC machine tools operation & programming

CNC TRAIN MASTER MACHINING CENTRE VMC 200T PC:- An economical and user-friendly PC based system specially designed to train

operators, technicians and engineers in CNC machine tools operation and programming.

Compact table top mounted model most ideal for training institutes & technical institutes.

3-Axis continuous path CNC system. Manual tool changing with CNC prompting. Stepless DC drive with RPM and load indication for headstock. Hardened and ground spindle runs in precision antifriction bearings. PC Based economical CNC system best suited to educational institutions. Recirculating ballscrew and nut arrangement for longitudinal axis.

CNC Assembly

Computerized Numerical Control

Conventionally, an operator decides and adjusts various machines parameters like feed , depth of cut etc depending on type of job , and controls the slide movements by hand. In a CNC Machine functions and slide movements are controlled by motors using computer programs.

Various CNC machines produced in HMT Ajmer unit are: GDS-15/22, GC-175/225 ,GCL-140/200,IG-100/150 etc.

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

CNC Machine Tool Assembly

HMT’S PRODUCTS

THANK

YOU