TOOLS FOR COLD HEADING AND THREAD-ROLLING MACHINES

TOOLS FOR PRODUCTION OF FASTENERS AND HARDWARE TUNGSTEN CARBIDE PRECISION MOLD AND DIE ELECTRIC DISCHARGE MACHINING & PREFORM FOR PRECISION STAMPING DIAMOND DIES COLD HEADING DIES PUNCHES PUNCH HOLDERS PUNCHES FOR NUTS TAPS FLUTELESS TAPS NUT TAPS FLAT THREAD ROLLING DIES DRILL POINT DIES KO PINS THREAD ROLLERS CUTTING KNIFE TRANSFER FINGERS FOR COLD HEADING EQUIPMENT FOR NUTS PLANETARY THREAD ROLLING DIES

DIAMOND DIES

For small diameter of wire drawing, as well as applications that require excellent surface quality of the wire, there is nothing better than drawing with diamond dies, manned by a single crystal of natural or synthetic origin, the proposed merger of Taiwan Metiz Alliance.

DIAMOND DIES Diamond die - a tool for wire drawing equipment that is used for drawing of soft copper, aluminum, and stainless steel wire, tungsten and steel wire with a copper coating. Treatment Principle by drawing is gradual decrease in the diameter of the wire from entering the diamond die to exiting therefrom (as shown below).

Advantages:

Excellent surface quality of the finished product.
Low coefficient of friction.
High wear resistance and durability of the calibrating zone.

Application:

Diamond dies are used for drawing the magnetic, tungsten, copper wire, stainless steel and precious metals.

The structure of diamond dies

Type of diamonds
Natural (natural) diamonds
Synthetic single crystal diamond.
Polycrystalline diamond.

Mandrel dies
Stainless steel / titanium alloy.

Hardened unit
Of cemented carbide powder.

The geometry of the die

		Soft wire	Hard wire	Soft wire: Copper, Aluminum, brass, gold, etc. Hard wire: stainless steel, steel with copper, brass or zinc coated wire of tungsten.
	The entrance area,α	70°±20°	60°±20°
	Corner crimping zone,ß	35°±5°	35°±5°
	Calibrating belt,γ	16°±2°	14°±2°
	The diameter of the drawing channel, D%	20-50	40-80
	The angle of the exit area,θ	15°±5°	15°±5°
	Output area,ψ	50°±20°	50°±20°
Available configurations for different wire material

Technical characteristics of the diamond dies

Type of dies		Dimensions of dies	Tolerance	Mandrel		Specifications of mandrel die
Type of dies		Dimensions of dies	Tolerance	A	B	Specifications of mandrel die
ND		<0.04	0.3	25	5.6	A: diameter of mandrel dies B: Height of mandrel dies
		0.04-0.10	0.5	25	5.6
		0.10-0.50	1.0	25	8
		0.50-1.00	2	25	10
SD	D6	0.10-0.50	1	25	7
	D12	0.10-0.80	1	30	15
	D15	0.50-1.50	2	30	15
	D18	1.00-2.30	3	30	15
	D21	1.60-3.40	3	30	15
	D24	2.60-4.60	5	42	20
	D27	3.00-5.80	8	55	24
	D30	4.00-11.20	8	55	24
	D33	6.00-12.50	8	60	28
	D36	8.00-13.50	8	70	35
	D	12.00-22.00	10	70	35
	D	20.00-32.00	10	85	40	Note: Dimensions are in mm.

Application of diamond dies

Material	Size, mm	Wolfram carbide	ND	SD	Application
Brass	0.18	1	200	600	El. copper wire
Brass	1.0	1	150	600	El. copper wire
Zinc Steel	0.175	1	10	60	Network cable
Copper-coated steel	1.20	1	50	120	Arc welding with gas protection (CO2)
Stainless steel	0.25	1	100	200	Stainless steel cable
Stainless steel tube	0.415	1	100	200	Needles medical syringes
Brass coated steel	0.175	1	6	30	Tire Cord
Galvanized iron	0.20	1	50	250	Steel cord

Instructions for diamond dies

To extend the life of the diamond die, you must:

Avoid jarring during installation of the die. Eliminates the possibility of vibration wire and equipment.
Use the necessary number of lubricant. The temperature of the lubricating fluid should be maintained at around 40-50 ° C continuously.
Follow the manufacturer's recommendations on PH levels and density. Apply filters and bath, remove unwanted impurities and pollution.
The time spent on repairing dies, calculated from the total volume of products that have undergone processing of the drawing dies. The table below gives a rough estimate of the material for drawing, dimensions and other parameters.

Ordering the necessary tools for you, please do not forget to specify the required parameters and characteristics, such as:

Type of die [ND,SD].
The diameter of the channel drawing.
The margin of error.
Dimensions mandrel die.
Material of Drawing
Type of drawing: dry / wet

Table of respective handling of matter and the type of dies

Material	The diameter of the drawing channel, mm
Copper, aluminum, brass	ND 0.1-1.0 SD 0.1-8.0
Steel	ND 0.1-0.2 SD 0.1-2.9
Zinc Steel	ND --------- SD 0.1-2.9
Brass coated steel	ND 0.2-0.5 SD 0.2-1.0
Covered steel	ND --------- SD 0.6-8.0
Stainless steel	ND 0.1-1.0 SD 0.1-3.0
Molybdenum, tungsten	ND 0.1-0.4 SD 0.3-1.0
Gold, platinum	ND 0.1-0.5 SD 0.5-8.0
Other solid steel	ND --------- SD 0.2-3.0