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Forging

Drop Hammer, Upset and Stamping

From our 0.5 tons Friction Drop Hammer up to our 5.5 ton Pneumatic Hammer our 5 hammers have the capability to produce forgings from as small as 100g up to 150Kg.

We cater for a market that requires small to medium batch quantities in a variety of carbon, high alloy and stainless steels, forging nearly 2,500 tons of material a year.

Uniquely flexible in our approach to manufacturing quantities we are able to meet low volume spares requirements up to OEM requirements of 1,000s.

The billets for forging are heated in oil fired or electric furnaces, closely controlling the temperature to reduce the scale formation and overheating so that the metallurgical properties are ensured in the final product. In addition, in-process inspection is carried out at all stages and 100% inspection for visual defects after forging. The accepted forgings are duly heat treated to ensure its mechanical properties.

Post Forge Operations

By providing heat treatment services in-house, NKH is able to maintain greater control over heat treating process. The facility comprise batch furnaces both oil fired & electrical, continuous electrical heating furnaces, solution treatment etc. to carry out annealing, Normalising, hardening, tempering, iso-thermal annealing, solution treatment etc. or other operations as specified by our customer. Close temperature control and process monitoring with the help of temperature recorders ensures uniform properties duly supported by evaluation of metallurgical properties through representative test piecesand test accordingly mentioned below on the available facilities provided by our Facilitation center, which is NATIONAL ACCREDITION BOARD FOR TESTING AND CALIBRATION LAB (NABL) APPROVED.

Vacuum Heat Treatment of Tools And Dies Steel

Vacuum heat treatment furnace chamber size 600 x 600 x 900 mm

Continuous Furnace

MESH BELT SIZE(WIDTH)

400 mm (MAX.)

FURNACE INLET OPENING HEIGHT

80 mm (MAX.)

HARDNING ZONE

LENGTH

5500 mm

TEMPRATURE RANGE

850oC - 925oC

TEMERING ZONE

LENGTH

6000 mm

TEMPRATURE RANGE

200oC - 700oC

QUENCHING MEDIUM

FAST QUENCH OIL

TYPE OF PROTECTIVE ATMOSPHERE

METHANOL & LPG.

Cp ( %AGE CARBON)

0.2 TO 0.6

AUTO MATICMANUAL

SIZE mm      WEIGHT gms.

MATERIAL LOADING

150x80      400 ( max.)

SIZE mm      WEIGHT gms.

300x80      800 ( max.)

WASHERS

PRE WASHER BEFORE HARDING

POST WASHER AFTER OIL QUENCHING

PRODUCTION CAPACITY

300 Kg/HRS

7-TONS/DAY

 


forging of a tailpin general forging shot shafts cooling after heat treatment
upset forged shafts shotblasted upset forging furnaces and shaft forging
crankshaft forging flight bar forging forging pistons
furnaces heating billets for flight bar forging axle forging

Induction Hardening

Medium Frequency Induction Hardening Machine 90 Kw, 3 - 10 KHz InductoThermmake.

Gas Carburising

Gas Carburising Furnace. 600 x 1100

Gas Nitriding Furnace. 600 x 1200

Capacity: 600 x 1200mm, simplicity.

Tempering Furnace

Capacity: 600 x 1100mm, Simplicity.

Tufftriding

Liquid Nitriding / Tuff Triding Furnace of Western Engineers make

Cryogenics Processing

Cryogenics Processor with Tempering Facility (-110C to -196C) PrimeroEnServemake. Size 400 x 1200 x 400.

Shot blasting, Grinding are all conducted in house along with Magnetic Particle Inspection.

 

 

NKH Group - Link Road - Industrial Area A - Ludhiana - T.+91 (161) 222 5996, 501 1755, 654 5551 - F. +91 (161) 5011 754


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