HMT Machine Tools Ltd Ajmer Practical Summer Training Presentation

Presentation on Practical Training taken at

HMT Machine Tools Ltd., Ajmer.

Siddharth BhatnagarB2-147

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Company Profile

• HMT Machine Tools Ltd. was Incorporated in 1953 by Govt. of India as a Machine Tool Manufacturing Company.

• Established for the purpose of making India self-reliant in manufacture of precision Grinding Machines.

• Over the years diversified into Watches, Tractors, Printing Machines, Metal Forming Presses, Die Casting, Machinery, CNC System & Bearings.

• HMT comprises 6 subsidiaries under the ambit of a holding co., which also manages the tractors business directly.

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Company Profile (Ajmer Unit)

• HMT Machine Tools Limited, Ajmer was established as Machine Tools Corporation of India Ltd. In 1967.

• It was established in collaboration with Skoda Exports Ltd., Czechoslovakia and subsequently with WMW & GDR, East Germany.

• Ajmer unit was merged with HMT Ltd. in 1975 & from April 1, 2000 it became a unit of HMT Machine Tools Ltd., a wholly owned subsidiary of HMT Ltd, a GoI undertaking.

• The unit is situated over 178 Acres of Land, out of which 62 acres are for factory campus & 116 acres for township.

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Awards

• National Productivity Award, in Machine Tools category for the year 1986-87.

• National Award for R & D efforts in Mechanical Engineering Sector in1990.

• HMT Ajmer was the first unit to receive ISO-9001 Certification in Rajasthan and second in HMT Units in the country.

• Conferred upon CMTI-Trust award for the best innovative design of the year.

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Vision & Mission

Vision

To be the World's largest and most admired CNC Grinder Manufacturing Company.

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Vision & Mission

Corporate Mission

• To establish ourselves as one of the world’s premiere companies in the engineering field having strong international competitiveness.

• To achieve market leadership in India through ensuring customer satisfaction by supplying internationally competitive products & services at most affordable prices.

• To achieve sustained growth in the earnings of the group on behalf of shareholders.

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Workplace Management

Workplace Management is carried out via 5-S tool:

• Shitsuke: Discipline.• Seiketsu: Standardization.• Seiso: Cleanliness.• Seiton: Neatness.• Seiri: Organisation.

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Departments of the Company

Major Departments of the Company are:

• Manufacturing.• Assembly.• Foundry.• Maintenance.• Inspection.• Human Resources.

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Manufacturing & Assembly

• HMT Ajmer’s manufacturing environment is highly advanced; this department looks after utilizing the latest production techniques in all phases of Manufacturing & Assembly.

• The assembly of machines is done in stages, such as sub assembly, group assembly and final assembly of individual components.

• The major sub departments associated with Manufacturing are: MM Shop, Rounds, Tool Room & HDM Shop.

• The major sub departments associated with Assembly are: GDS, GCS, GTC & Electrical Assembly.

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The different sections associated with the Manufacturing & Assembly Department are:

• Spindle Section• Turret Section• Round Section• Gearing Section • Non Round Section• Sheet Metals Section

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The different Operations performed at the Manufacturing & Assembly Department are:

• Marking.• Vertical Milling.• Drilling.• Fitting.• Grinding.

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CNC Machine Parts are Manufactured & Assembled in this Section.

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Foundry

• Foundry produces Metal Castings and it’s the Initiation process in the whole Fabrication of the Machines and their components.

• Metals are cast into shapes by melting them into a liquid, pouring the metal in a mold, and removing the mold material or casting after the metal has solidified as it cools.

• The most common metals processed are Aluminum and Cast Iron other metals, such as Bronze, Brass, Steel, Magnesium, and Zinc, are also used to produce castings.

• Parts of desired shapes and sizes can be formed.

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Foundry

Foundry Operations at a Glance

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Foundry

Pattern Making

• Patterns provide the exterior (mould) or interior (core) shape of the finished casting and are produced in wood, metal or resin for use in sand mould and core making.

• Patterns are usually made in two halves.• It is a direct duplication, pattern very closely conforms to the

shape and size of the desired casting, except for a few variations due to the necessary allowances.

• Wood, Metal, Thermo-col, Rubber & Epoxy resins are the commonly used Patterns.

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Foundry

Pattern Making

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Foundry

Sand Mould & Core Making

• Sand casting is the most common production technique, especially for ferrous castings.

• Sand is mixed with clay and water or with chemical binders and then packed or rammed around the pattern to form a mould half.

• The two halves are joined together to make the mould - a rigid cavity that provides the required shape for the casting.

• The finished cores, which can be solid or hollow, are inserted into the mould to provide the internal cavities of the casting.

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Foundry

Sand Mould & Core Making

Omega Spartan II Sand Mixer.

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Foundry

Metal Melting

• Molten metal is prepared in a variety of furnaces, the choice of which is determined by the quality, quantity and requirement.

• Electric Induction Furnaces are the most common type used for batch melting of ferrous, copper and super alloys.

• This method involves the use of an electrical current surrounding a crucible that holds the metal charge.

• Furnace sizes range from < 100 kg up to 15 Tonnes.

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Foundry

Metal Melting

Specifications of 1.5 Tonne Furnace

• Line Voltage : 11000 Volts• Primary Voltage : 440 Volts• Power Voltage : 440 KW• Power Rating : 5 KA• Melting Power : 1 Tonne per Hour• Frequency : 50 Hz• Lining Thickness : 95 mm• Power Factor : 0.9

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Foundry

Other Foundry Processes

• Casting & Separation.• Removal of Runners & Risers. • Finishing.• Sand Recovery & Reclamation.

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Products

CGM-225 CNC

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Products

GTC28 TM

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Products

CGM- 175 CNC

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Major Achievements

• Development of 8 axes CNC Crank Shaft Journal & Pin Grinding Machine as Import Substitution.

• CNC Heavy Duty Internal Grinding machine model GI400(SPM) for grinding carbide bush ID up to 400mm with diamond grinding wheel.

• CNC Heavy Duty Vertical spindle reciprocating table surface grinding machine for grinding locomotive equalizer beams.

• CNC Centre-less grinding machine for grinding bearing race dia. up to 300 mm as import substitution.

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Customers

• Automotive Sector: Bajaj Auto, Ford India, Hyundai Motors, Ashok Leyland.

• General Engineering: Videocon, Godrej, TI Diamonds, Voltas, Indian Railways.

• Defense: Kanpur Ordnance Factory, HAL, Jabalpur Vehicle Factory, Nuclear Fuel Complex.

• Bearing Industries: NEI Bearings, Timken India, NRB Bearings, KCI Bearings.

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Thank You!

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