THREAD ROLLING SOLUTIONS

Transcription

1 .J. WINTER MHINE TEHNOLOGIES, IN THRED ROLLING SOLUTIONS GUIDE TO THRED ROLLING SIS ND THRED ROLLING STYLES

2 How to Determine the orrect Working Face Figures through 4 are intended to help you calculate the working face F for various thread rolling applications, and how to position the roll properly. The working face (or F dimension) of the thread roll must always be greater than the length of the thread that needs to be rolled. The general rule is to allow the thread to overhang each end of the blank by at least ¼ threads (root to root or crest to crest = thread). Locating Edge Figure # Second Edge Figure # Figure # Figure #4 hamfer L F L F L F L F = hamfer Side = Shoulder Side L = Length of Rolled Thread P = Pitch Figure # and # - F=(.5xP)+L Figure # and #4 - F=(.50xP)+L =.50xP =.5xP Working Face alculation

3 Type - ut Off W- Standard Workface Winter Landis Detroit Model Std. W.F. Model Std. W.F. Model Std. W.F. 5-S G (0-75) S G (6-65) S G (0-750) S G (0-000) S.50 4G (5-5).06 6/6-S.65 Reed 70-S.50 Model Std. W.F. 7/7-S Davenport Salvo Model Std. W.F. -0 (500-G) 0.65 Model Std. W.F. 4-S (750-G) L S (000-G).5 L S DL. ollet When to Use W- Style ) Rolling on outboard end of work. ) Standard Working Face is satisfactory for length of thread to be rolled. ) Position of attachment in relation to collet is not important. 4) Sufficient clearance is available on either side of working face. Standard: Working face as listed above Optional: Special bevels, machined breakouts, bronze bushings, left handed threads, multiple leads.

4 s Type R- ut Off WR- Standard Workface Winter Landis Detroit Model Std. W.F. Model Std. W.F. Model Std. W.F. 5-S G (0-75) S G (6-65) S G (0-750) S G (0-000) S.47 4G (5-5) /6-S.5 Reed 70-S.47 Model Std. W.F. 7/7-S Davenport Salvo Model Std. W.F. -0 (500-G) Model Std. W.F. 4-S (750-G) L S (000-G).000 L S DL.87 ollet When to Use WR- Style ) Length of thread on part to be reversed (doubling) production from each pair of rolls). See instructions on determining correct working face. Standard: Double drive slots; working face as listed above Optional: Special bevels, machined breakouts, bronze bushings, left handed threads, multiple leads.

5 Type - Type - ut Off ut Off ollet Working face must be specified when ordering W- Style. When to Use W- Style ) Rolling threads behind a shoulder at cut-off end. ) Narrow width required due to part configuration. ) ttachment to be positioned as close to collet as possible. ollet Working face must be specified when ordering W- Style. When to Use W- Style ) Rolling threads behind a shoulder at cut-off end. ) Narrow width required due to part configuration. ) ttachment to be positioned as close to collet as possible. Optional: Special bevels, machined breakouts, bronze bushings, double drive slots, left handed threads, multiple leads. Optional: Special bevels, machined breakouts, bronze bushings, double drive slots, left handed threads, multiple leads.

6 Type -4 Type DR-5 ut Off ut Off s ollet ollet Working face must be specified when ordering W-4 Style as well as the length of hub opposite the drive slot. Working face must be specified when ordering WDR-5 Style as well as groove diameter and/or stock diameter. When to Use W-4 Style ) It is important to maintain position of attachment on the cross slide. ) Need to maintain the position of the cut-off end of the part relative to the collet Optional: Special bevels, machined breakouts, bronze bushings, double drive slots, left handed threads, multiple leads. When to Use WDR-5 Style ) When rolling two threads of the same diameter and pitch which are separated by a shoulder ) Rolling behind a shoulder where length of thread permits rolls to be reversed (doubling production of pair of rolls). Standard: Recessed double drive slots. Optional: Special bevels, machined breakouts, bronze bushings, left handed threads, multiple leads.

7 Type D- ut Off WD- Standard Workface Winter Landis Detroit Model Std. W.F. Model Std. W.F. Model Std. W.F. 5-S.66* 4G (0-75) S.750* 8G (6-65) S.000* 0G (0-750) S.000* G (0-000) S.656* 4G (5-5).88 6/6-S.95* Reed 70-S.656* Model Std. W.F. 7/7-S.95* Davenport Salvo Model Std. W.F. -0 (500-G) Model Std. W.F. 4-S.750* - (750-G).000 L S.750* -8 (000-G).50 L S.750* DL.47 *Gear Guard must be removed when installing ollet When to Use WD- Style ) Working face of rolls with standard hubs is not sufficient for length of thread required. See instructions for determining correct working face. Standard: Recessed drive slot, extended standard working face as listed above. Optional: Special bevels, machined breakouts, bronze bushings, left handed threads, multiple leads.

8 4 s Type DR- ut Off WDR- Standard Workface Winter Landis Detroit Model Std. W.F. Model Std. W.F. Model Std. W.F. 5-S 0.66* 4G (0-75) S 0.750* 8G (6-65) S.000* 0G (0-750) S.000* G (0-000) S.656* 4G (5-5).88 6/6-S.95* Reed 70-S.656* Model Std. W.F. 7/7-S.95* Davenport Salvo Model Std. W.F. -0 (500-G) Model Std. W.F. 4-S 0.750* - (750-G).000 L S 0.750* -8 (000-G).50 L S 0.750* DL.47 *Gear Guard must be removed when installing ollet When to Use WDR- Style ) Length of thread on part permits rolls to be reversed (doubling production on pair of rolls). See instructions on determining correct working face Standard: Recessed drive slots, working face as listed above Optional: Special bevels, machined breakouts, bronze bushings, left handed threads, multiple leads.

9 47' Standard Taper Type K- Rolls for Taper Pipe Threads 47' Standard Taper Type Q- Rolls for Taper Pipe Threads ut Off ut Off ollet ollet When to use K- Style ) Rolling taper pipe threads with small end of work towards the collet Standard: NPT or NPTF as specified 45 deg. hamfer, working face as listed in table Optional: Special working face, bronze bushings WK- and WQ- Standard Working Face /6-7 NPT/NPTF 0.75 /4-4 NPT/NPTF 0.74 /8-7 NPT/NPTF NPT/NPTF /4-8 NPT/NPTF 0.56 /4 -.5 NPT/NPTF 0.94 /8-8 NPT/NPTF 0.56 / -.5 NPT/NPTF 0.94 / - 4 NPT/NPTF 0.7 When to use Q- Style ) Rolling taper pipe threads with small end of work away from collet