JECRC UDML COLLEGE OF ENGINEERINGTRAINING REPORT

HMT AJMER

Presentation on industrial training at

HINDUSTAN MACHINE TOOL LTD. (HMT) Byawer road , Ajmer (RAJASTHAN) DURATION: 27MAY TO 27 JULY 2016

PRESENTED BY :MAYANKRAJ PRAJAPAT

13EUDME088Dep.of Mechanical Engineering

INTRODUCTION

HMT Limited, formerly Hindustan Machine Tools Limited A state-owned manufacturing company under the Ministry of Heavy Industries and Public Enterprises in India.Manufactures industrial machines and tools .

OBJECTIVE Producing a limited range of machine tools, required for building an industrial base in the country.

ESTABLISHEHMT Limited was established in 1953 in technical collaboration with M/s Orleikon of Switzerland.

PRODUCT RANGETools, Watches, Tractors, Printing Machine Press, Di-Casting and Plastic Injection, Moulding Machines, Food Processing Machinery, CNC Systems, Bal Screws etc.

UNITSAjmerBanglore (MOTHER UNIT)PinjoreKalamasseryand Hyderabad

are all ISO 9000 certified. Today over 780000 machine tools manufactured by HMT are in used in India and elsewhere

HMT SUBSIDIARIES

• HMT Machine Tools Limited, • HMT Watch Limited, • HMT Bearings Limited, • HMT Chinar Watches Limited, • HMT (International) Limited, Ø Praga Machine Tools Limited.

HMT AT A GLANCE

HMT AT A GLANCE

• Date of Registration 1967 • Commencement of Production 1970-71 • Land Area –Total 178 Acres • Plant Foundry 62 Acres • Power Required 4.00 Lacs Units/M • No. of Machines 250 • ISO-9001 Certified 1994 • No. Of machine shops 180

HMT, MACHINE TOOLS DIVISION, AJMER 1. HMT AJMER PLANT WAS ORIGNALLY ESTABLISED AS “MACHINE CORPORATION OF INDIA LIMITED “ IN JANUARY 1967 .

2. THIS UNIT WAS SUBMERGED WITH HMT LIMITED ON 1 APRIL, 1975

DEPARTMENTS

1.FOUNDRY2.MANUFACTURING - MMS , ROUND ,HDMS, TOOL ROOM 3.ASSEMBLY - K130 , GCL , GDS, GTC , ELCTRICAL ASSEMBLY4.MAINTENANCE5.INSPECTION

FOUNDRY DEPARTMENT

TWO UNITS• Small production casting 1000MT per annum• Mass production casting 2000MT per annum

PATTERN SHOP

* Pattern making- Pattern –a replica of the object used to prepare the mould .Wood ,metal, plastic etc .Pattern have two halves .Sand castingGenerally for –ferrous castingsSand + clay + water +bindersWet sand , green sand , dry sand

*

MELTING SHOP Temperature 1400-1450 degree centigrade .Use INDUCTION FURNANCE – copper coils

Metal scrape , coke mixed & current is supplied HREE FURNACES – TWO 3 MT & ONE 1.5 MT

* CastingMetal poured into the “runner” (a channel into the mould cavity) until the runner bush is full. The “riser” provides an additional reservoir of feed metal .* Separationshakeout * Finishing• heat treatment--including annealing, tempering, normalising and

quenching (in water or oil)• ♦ by grinding• ♦ rectification of defects by welding; • ♦machining; • ♦ priming, painting

MANUFACTURING DEPARTMENT

SUB-DIVISIONS -

1. MMS- Medium Machine ShopSHAPEING PROCESS –ON PAINTED CASTINGSUseing V TURRET &CENTER LATHmilling, drilling, boring and surface grinding machines

main machines in shop are:

• Milling (H & V-milling) Machine • Lathe (Centre & V-Turret) Machine • Vertical Boring Machine • Radial Drilling Machine • Surface & Cylindrical Grinding Machine • Honing Machine • Shaper Machine

main machines in shop are:

• Milling (H & V-milling) Machine • Lathe (Centre & V-Turret) Machine • Vertical Boring Machine • Radial Drilling Machine • Surface & Cylindrical Grinding M/C • Honing Machine • Shaper Machine

LATH MACHINE OPERATIONS –

• Turning • Taper turning • Threading (External & Internal) • Boring • Grooving • Drilling • Facing • Knurling • Taping (internal thread cutting) etc.

BORING MACHINE-• Boring is the operation of enlarging an already drilled hole.Types -• Horizontal Boring Machine - • large components which cannot be rotated

• Vertical Boring Machine -

• Jig Boring Machine – (used to accurately enlarge existing holes )

RADIAL DRILLING MA/C

GRINDING machineSurface grinding machine Cylindrical grinding machine Internal grinding machine

HONING MACHINE SHAPER MACHINE

2. ROUND SHOP

INTERNAL GRINDING MACHINE SURFACE GRINDING MACHINE GRINDING OPER .ROTARY GRINDING MACHINECYLINDRICAL GRINDING MACHINESLOTTERGEARING (SPUR ,WORM ,HELICAL)MILLING MACHINEBROCHING

3. HDMS (HEAVY DUTIES MACHINE SHOP )

• LARGE SIZE CASTINGS ARE MACHINED

two sections:

Planning - FOR LARGE FLAT SURFACES ARE PLANED • Plano Milling Machining – ONLY ONE DIRECTION TOOL MOTIONBoring -

PLANO MILLING MACHINE• SPECIAL DOUBLE CROSS RAIL SYSTEM• 2800 Length

4. TOOL ROOMSVarious kind of tools –

•Varnier caliper ( 10MM least measurement )

•Micrometer

* Dial indecatre

ASSEMBLY DEPARTMENT

1. GPM SECTION ( General purpose machine ) Main machine in this section are -• K130 • GCL (Centre-less Grinding) • GDS (Double Surface Grinding) Ø GTC (Tool Cutter Grinding)

CENTERLESS GRINDING (GCT)

CYLINDRICAL GRINDING G17/800

K130 M/C

CNC SECTION -Main parts of the CNC machine are –

Bed Pallet chaner (optional) Magazine AC servo motors Tool changer arm Head Main spindleColumn Saddle Table

Cylindrical CNC

CNC CYLINDRICAL GRINDER 125 / 175

• 125 mm VERTICAL SPINDEL MOTION• 175 mm VERTICAL SPINDEL MOTION

DOUBLE-DISC GRINDING CNC GDS

OBJECT WITH TWO OPPOSITE FINISHING SURFACES

Salient features of CNC machines are as follows

machine Linear motion with guide ways One package designLong nose quill type spindle Spindle cooling( for machine with spindle speed of 6000 rpm) Stepless AC spindle motor Electronic spindle orientation AC servomotors LubricationAutomatic chip collection Guide protection Automatic Tool Changer(ATC). Numeric head counter balance

MAINTENANCE DEPARTMENT TYPES OF MAINTINANCE -• BREAK DOWN• PREVATIVE• PRDECTIVE• RECONDITIONING

•WHY …..?TO MAINTAIN EFFICIENCY AND ACCURACY OF MACHINE .

THANKS