Siam Master Precision Tool Ltd. (Thailand)

http://www.smptthailand.com

Factory:  13/20 หมู่ 10 ซอยบางปลา19 ถ.เทพารักษ์ ตำบลบางปลา อำเภอบางพลี 

                  จังหวัดสมุทรปราการ 10540

Tel: 02-1752487-8      Fax: 02-175-2489

Factory: 13/20 หมู่ 10 ซอยบางปลา19 ถ.เทพารักษ์ ตำบลบางปลา อำเภอบางพลี จังหวัดสมุทรปราการ 10540

             13/20Moo10 Soi.Bangpla 19  T.Bangpla ,A.BangPlee, Samutprakarn 10540

for serrations and splines (e.g. DIN 5481, ASA, ANSI)
for helical gearings
for special gearings (e.g. according to standards of all automobile manufacturers)
for knurling in compliance with DIN 82 (in milled or ground finish)



Cylindrical Dies for Serrations / Spline
CROSS = 16T,18T,20T,22T,24T,26T,28T,30T,32T,36T,40T
STRAIGHT = 16T,18T,20T,22T,24T,26T,28T,30T,32T,36T,40T
These dies are used for rolling involute serration and involute spline for automotive components. The dies are finished by grinding operations and achieve high accuracy and excellent surface finish
ลูกรีดลาย ตรง ลายไขว้

Specifications of Spline Rolling Die:
Diameter Min – Max (mm) : 100 - 260
Length Min - Max (mm) : 10 - 15
Module Min - Max (DP) : 0.25 – 2.0 (96 – 12)
Max Helix angle (Deg) : 60o
Bore Diameter (mm) : 30, 40, 54, 69, 85, 76.2, 80, 85, 90, 100
Pressure angle : 20o to 45o
Pitch : 0.50mm to 5.0mm

Helical Splines:
where the equally-spaced grooves form a helix about the shaft. The sides may be parallel or involute. This can either minimize stress concentrations for a stationary joint under high load, or allow for rotary and linear motion between the parts.

Knurling:
Knurling is widely used in industry for many applications. Some of these include: decorative and “grip” surfaces, repair of undersized shafts and oversize bores, and driving serrations and splines. The word “knurling” applies to both the method of production, and the rolled section on the part. It is usually produced by forcing a knurling die into the surface of a rotating part, displacing material from the original diameter. Two methods of specifying the comparative tooth spacing are currently in use – CIRCULAR PITCH and DIAMETRAL PITCH. The CIRCULAR PITCH system has been used for many years and is based on the distance between teeth (pitch) and expressed as TEETH per INCH of circumference or TPI.

Diamond Knurling:
When someone requests DIAMOND” knurl or wants to roll a “DIAMOND PATTERN” on a part, there are several questions that need to be answered. It is very easy to confuse what is required on the part and on the knurling die itself. First we need to know whether a MALE (raised pyramid) or FEMALE (depressed pyramid) pattern is required on the part to be rolled. If the print just says “Diamond Knurl”, we assume it to mean “MALE DIAMOND” Knurl on the part. Then we need to know what type holder will

Product Name：Thread Rolling Dies
Special Instructions：
Any Kind of Thread can be made such as UNC, UNF, BSW, Metric, ACME, Ball Screw, even Tube Thread


Circular Thread Rolling Dies, Planetary Thread Rolling Dies
Standard Thread Rolling Dies:

Single-Thread
60oV-Type Teeth, Pitch 0.5-5.0mm
55o V-Type Teeth, 40TPI-5TPI
90o Knurling Thread, and 40TPI-18TPI
Parallel Thread

How To Order Thread Rolling Dies:

Please offer below data:
Machine model or Rolling Die dimension (O.D., I.D., Keyway).
Shape of work piece (thread length, thread profile, pitch or thread per inch, thread Major     dia., pitch dia., material).
Please specify through or in-feed rolling.

Special Thread Rolling Dies:

Over than single-thread
60oV-type teeth, pitch out of 0.5mm-5.0mm
55oV-type teeth, out of 40TPI-5TPI
90oKnurling thread and metric size pitch
Spline
Worm thread, ACME thread, buttress, cycle thread, bottle closure thread, and..etc.
Taper thread
For rolling special material, Ex. SUS, Alloy steel and hardness over than RC20.